How long is the flight from Washington, D.C. Dulles Intl Airport to London?

There are many flights that can get you from Washington, D.C. Dulles Intl Airport to London in 7h 20m. Fly via Icelandair, Scandinavian Airlines, or United Airlines to get the fastest option. Airlines will cover a distance of 3664 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to London round-trip?

Flying on Lufthansa is currently your cheapest option to London, with prices starting at £304. Additional return tickets that might be worth considering are offered by Icelandair and Virgin Atlantic, with the lowest prices starting at £362 and £376, respectively. Lufthansa is 43% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to London one-way?

The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as £202. However, be on the lookout for offers from British Airways and United Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to London for a low price.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to London?

Travellers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to London flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Washington, D.C. Dulles Intl Airport to London?

The most popular flight routes from Washington, D.C. Dulles Intl Airport to London are Washington, D.C. Dulles Intl - London Heathrow, Washington, D.C. Dulles Intl - London Gatwick and Washington, D.C. Dulles Intl - London City.

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to London?

Looking at all options, your cheapest flight can be booked for £308. While the most popular route (Washington, D.C. Dulles Intl - London Heathrow) can be booked for £311 on average, our data indicates £629 when flying from Washington, D.C. Dulles Intl Airport to London.

What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to London?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to London on time: Aeromexico (100%), KLM (80%), Air France (80%).

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to London?

Air France, British Airways and Icelandair are the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to London.

Can I find deals for flights from Dulles Intl to London that include hotel bookings?

Yes. In addition to deals on Dulles Intl to London flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to London?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to London.

Can I find deals for business class flights from Dulles Intl to London?

Yes. Cheapflights offers flight deals from Dulles Intl to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£196+ Flights from Washington, D.C. Dulles Intl Airport to London

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to London are usually found in January or October, booked 81 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from Dulles Intl to London

Round-trip from	£357
One-way from	£196
Popular in	June
Cheapest in	January
Average price	£471
Good round-trip deal	£479 or less
Good one-way deal	£327 or less

14/11-22/11
4 total stops
34h 40m total
Washington, D.C. to London

Search Deals

19/10
3 total stops
39h 45m total
Washington, D.C. to London

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£62 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to London (LON).

Search Deals

Price to beat on a one-way flight from Washington, D.C. Dulles Intl to London (LON).

Search Deals

Find flight deals from Dulles Intl to London

Cheapest flights from Dulles Intl to London
Explore the most affordable flight options available from Dulles Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 9월 2025.

금 14/1119:40IAD - STN

2 stops17h 40mMultiple Airlines

토 22/1106:30STN - IAD

2 stops17h 00mMultiple Airlines

Deal found 15/9£357

수 12/1120:30IAD - LHR

2 stops35h 25mScandinavian Airlines

토 15/1106:40LHR - IAD

2 stops17h 10mScandinavian Airlines

Deal found 16/9£358

수 1/1023:15IAD - LGW

1 stop10h 25mIcelandair

화 7/1015:40LGW - IAD

1 stop32h 40mIcelandair

Deal found 15/9£359

일 28/923:15IAD - LHR

1 stop31h 40mIcelandair

화 7/1013:05LHR - IAD

1 stop11h 15mIcelandair

Deal found 16/9£359

목 4/1219:40IAD - LTN

2 stops15h 20mMultiple Airlines

화 9/1209:00LTN - IAD

2 stops14h 30mMultiple Airlines

Deal found 16/9£359

토 4/1023:15IAD - LGW

1 stop10h 20mIcelandair

화 14/1015:40LGW - IAD

1 stop32h 40mIcelandair

Deal found 15/9£360

수 1/1020:30IAD - LHR

1 stop10h 25mIcelandair

수 8/1021:25LHR - IAD

1 stop26h 55mIcelandair

Deal found 15/9£360

수 1/1020:30IAD - LGW

1 stop13h 10mIcelandair

수 15/1015:40LGW - IAD

1 stop11h 30mIcelandair

Deal found 14/9£361

금 3/1020:30IAD - LGW

1 stop13h 10mIcelandair

화 7/1015:40LGW - IAD

1 stop32h 40mIcelandair

Deal found 14/9£361

수 1/1020:30IAD - LHR

1 stop10h 25mIcelandair

금 31/1020:35LHR - IAD

1 stop26h 55mIcelandair

Deal found 16/9£361

수 15/1017:50IAD - STN

2 stops18h 05mMultiple Airlines

화 21/1014:50STN - IAD

2 stops29h 30mMultiple Airlines

Deal found 15/9£362

월 1/1219:40IAD - STN

2 stops13h 40mMultiple Airlines

일 14/1206:30STN - IAD

2 stops17h 00mMultiple Airlines

Deal found 15/9£363

Best flights from Dulles Intl to London
Discover carefully curated flight deals from Dulles Intl to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 9월 2025.

토 8/1119:40IAD - LGW

1 stop10h 15mIcelandair

목 13/1111:55LGW - IAD

1 stop11h 35mIcelandair

Deal found 15/9£380

수 19/1119:40IAD - LTN

1 stop20h 10mMultiple Airlines

월 24/1108:00LTN - IAD

1 stop15h 30mMultiple Airlines

Deal found 16/9£387

토 24/112:30IAD - LHR

2 stops15h 50mScandinavian Airlines

일 1/221:05LHR - IAD

2 stops25h 10mScandinavian Airlines

Deal found 15/9£397

일 25/118:20IAD - LHR

Nonstop7h 20mUnited Airlines

월 2/213:45LHR - IAD

1 stop31h 55mUnited Airlines

Deal found 15/9£417

수 1/1017:50IAD - LHR

Nonstop7h 30mVirgin Atlantic

금 31/1008:55LHR - IAD

1 stop12h 40mVirgin Atlantic

Deal found 16/9£425

월 29/917:50IAD - LHR

Nonstop7h 30mDelta

금 10/1009:00LHR - IAD

1 stop15h 15mDelta

Deal found 14/9£425

월 13/1017:25IAD - LCY

1 stop9h 45mKLM

수 3/1210:00LCY - IAD

1 stop11h 05mKLM

Deal found 13/9£468

금 9/119:40IAD - LGW

1 stop10h 15mIcelandair

화 20/111:55LGW - IAD

1 stop11h 35mIcelandair

Deal found 14/9£380

화 21/1009:35IAD - STN

2 stops26h 35mMultiple Airlines

금 31/1005:55STN - IAD

2 stops19h 04mMultiple Airlines

Deal found 16/9£398

수 12/1112:11IAD - LHR

2 stops22h 49mScandinavian Airlines

일 16/1121:05LHR - IAD

2 stops25h 10mScandinavian Airlines

Deal found 16/9£405

일 12/1022:25IAD - LHR

Nonstop7h 15mUnited Airlines

화 21/1012:10LHR - IAD

1 stop33h 05mUnited Airlines

Deal found 16/9£417

일 9/1119:40IAD - LGW

1 stop10h 15mIcelandair

목 13/1111:55LGW - IAD

1 stop11h 35mIcelandair

Deal found 15/9£380

수 5/1122:30IAD - STN

2 stops19h 10mMultiple Airlines

월 17/1118:00STN - IAD

2 stops25h 35mMultiple Airlines

Deal found 15/9£400

수 26/1118:20IAD - LHR

Nonstop7h 20mUnited Airlines

월 8/1213:45LHR - IAD

1 stop31h 55mUnited Airlines

Deal found 15/9£417

토 11/1020:30IAD - LGW

1 stop13h 05mIcelandair

목 4/1211:55LGW - IAD

1 stop11h 35mIcelandair

Deal found 13/9£380

화 11/1111:50IAD - LCY

2 stops15h 20mVirgin Atlantic

목 27/1110:00LCY - IAD

1 stop11h 05mVirgin Atlantic

Deal found 16/9£471

일 8/218:05IAD - LCY

1 stop9h 45mKLM

수 11/309:20LCY - IAD

1 stop11h 45mKLM

Deal found 15/9£474

월 24/1109:45IAD - STN

3 stops29h 15mMultiple Airlines

월 1/1211:55STN - IAD

2 stops33h 45mMultiple Airlines

Deal found 16/9£414

수 15/1023:15IAD - LGW

1 stop10h 25mIcelandair

목 4/1211:55LGW - IAD

1 stop11h 35mIcelandair

Deal found 13/9£380

일 23/1118:20IAD - LHR

Nonstop7h 20mUnited Airlines

화 2/1214:50LHR - IAD

1 stop28h 50mUnited Airlines

Deal found 16/9£419

화 30/917:25IAD - LCY

1 stop11h 05mVirgin Atlantic

목 9/1008:40LCY - IAD

2 stops19h 20mVirgin Atlantic

Deal found 16/9£475

일 12/1017:25IAD - LCY

1 stop9h 45mKLM

월 20/1009:20LCY - IAD

1 stop11h 15mKLM

Deal found 16/9£504

금 31/1009:45IAD - LTN

3 stops26h 30mMultiple Airlines

목 6/1120:00LTN - IAD

2 stops29h 26mMultiple Airlines

Deal found 16/9£417

목 13/1119:40IAD - LGW

1 stop10h 15mIcelandair

수 26/1111:55LGW - IAD

1 stop11h 35mIcelandair

Deal found 15/9£380

수 14/118:20IAD - LHR

Nonstop7h 20mUnited Airlines

화 20/106:50LHR - IAD

1 stop12h 45mUnited Airlines

Deal found 15/9£423

일 8/211:00IAD - LCY

2 stops15h 15mVirgin Atlantic

수 11/309:20LCY - IAD

1 stop11h 45mVirgin Atlantic

Deal found 15/9£477

수 15/1020:30IAD - LGW

1 stop13h 10mIcelandair

금 5/1211:55LGW - IAD

1 stop11h 35mIcelandair

Deal found 13/9£380

수 12/1118:20IAD - LHR

Nonstop7h 20mUnited Airlines

화 18/1106:50LHR - IAD

1 stop12h 45mUnited Airlines

Deal found 16/9£423

금 14/1119:40IAD - STN

2 stops15h 00mMultiple Airlines

일 16/1115:00STN - IAD

2 stops32h 30mMultiple Airlines

Deal found 15/9£424

금 7/1118:05IAD - LCY

1 stop10h 25mVirgin Atlantic

화 11/1110:00LCY - IAD

1 stop11h 05mVirgin Atlantic

Deal found 15/9£504

Direct flights from Dulles Intl to London
Explore direct flight options from Dulles Intl to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 9월 2025.

일 28/917:50IAD - LHR

Nonstop7h 30mVirgin Atlantic

화 7/1012:35LHR - IAD

Nonstop8h 25mVirgin Atlantic

Deal found 16/9£398

수 29/1019:20IAD - LHR

Nonstop7h 20mLufthansa

수 5/1112:05LHR - IAD

Nonstop8h 30mLufthansa

Deal found 14/9£401

수 15/1018:40IAD - LHR

Nonstop7h 15mLufthansa

화 21/1012:15LHR - IAD

Nonstop8h 15mLufthansa

Deal found 15/9£404

일 28/922:25IAD - LHR

Nonstop7h 15mUnited Airlines

화 7/1012:15LHR - IAD

Nonstop8h 15mUnited Airlines

Deal found 16/9£412

수 29/1023:20IAD - LHR

Nonstop7h 30mVirgin Atlantic

수 5/1116:50LHR - IAD

Nonstop8h 40mVirgin Atlantic

Deal found 14/9£413

화 14/1018:45IAD - LHR

Nonstop7h 30mVirgin Atlantic

화 21/1012:35LHR - IAD

Nonstop8h 25mVirgin Atlantic

Deal found 16/9£414

Last-minute flights from Dulles Intl to London
Discover last-minute flight deals from Dulles Intl to London. Data last updated 17 9월 2025 and is based on user searches.

화 23/920:30IAD - LHR

1 stop10h 25mIcelandair

화 7/1021:25LHR - IAD

1 stop26h 55mIcelandair

Deal found 16/9£364

일 28/923:15IAD - LHR

1 stop31h 40mIcelandair

화 7/1013:05LHR - IAD

1 stop11h 15mIcelandair

Deal found 16/9£359

수 1/1023:15IAD - LGW

1 stop10h 25mIcelandair

화 7/1015:40LGW - IAD

1 stop32h 40mIcelandair

Deal found 15/9£359

수 1/1020:30IAD - LHR

1 stop10h 25mIcelandair

수 8/1021:25LHR - IAD

1 stop26h 55mIcelandair

Deal found 15/9£360

수 1/1020:30IAD - LGW

1 stop13h 10mIcelandair

수 15/1015:40LGW - IAD

1 stop11h 30mIcelandair

Deal found 14/9£361

수 1/1020:30IAD - LHR

1 stop10h 25mIcelandair

수 29/1012:15LHR - IAD

1 stop11h 15mIcelandair

Deal found 14/9£364

금 3/1020:30IAD - LGW

1 stop13h 10mIcelandair

화 7/1015:40LGW - IAD

1 stop32h 40mIcelandair

Deal found 14/9£361

토 4/1023:15IAD - LGW

1 stop10h 20mIcelandair

화 14/1015:40LGW - IAD

1 stop32h 40mIcelandair

Deal found 15/9£360

토 4/1020:30IAD - LHR

1 stop10h 25mIcelandair

화 14/1021:25LHR - IAD

1 stop26h 55mIcelandair

Deal found 15/9£363

일 12/1023:15IAD - LGW

1 stop10h 25mIcelandair

수 3/1211:55LGW - IAD

1 stop11h 35mIcelandair

Deal found 13/9£364

일 12/1023:15IAD - LGW

1 stop10h 25mIcelandair

월 20/1015:40LGW - IAD

1 stop32h 40mIcelandair

Deal found 16/9£365

월 13/1020:30IAD - LGW

1 stop13h 05mIcelandair

목 23/1015:40LGW - IAD

1 stop32h 40mIcelandair

Deal found 14/9£363

One-way flights from Dulles Intl to London
Search for one-way flight options from Dulles Intl to London. Find affordable one-way fares based on user searches. Data last updated 17 9월 2025.

일 19/1022:20IAD - STN

3 stops39h 45mMultiple Airlines

Deal found 15/9£196

목 27/1117:30IAD - LGW

1 stop11h 20mTAP AIR PORTUGAL

Deal found 15/9£196

목 27/1117:30IAD - LHR

1 stop12h 55mTAP AIR PORTUGAL

Deal found 15/9£196

월 13/1022:20IAD - LTN

3 stops28h 25mMultiple Airlines

Deal found 15/9£196

목 16/1017:50IAD - STN

2 stops24h 30mMultiple Airlines

Deal found 15/9£197

금 10/1016:45IAD - LGW

2 stops32h 35mMultiple Airlines

Deal found 15/9£197

월 22/906:10IAD - LHR

3 stops20h 30mMultiple Airlines

Deal found 16/9£197

화 18/1117:30IAD - STN

2 stops24h 40mMultiple Airlines

Deal found 15/9£197

월 9/215:37IAD - LGW

1 stop13h 23mMultiple Airlines

Deal found 15/9£197

수 15/1009:00IAD - LHR

3 stops25h 35mMultiple Airlines

Deal found 14/9£197

금 7/1122:30IAD - LHR

1 stop14h 00mTAP AIR PORTUGAL

Deal found 16/9£198

월 3/1117:30IAD - STN

2 stops24h 10mMultiple Airlines

Deal found 15/9£199

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

토 8/11

19:40-10:55

1 stop10h 15m

London Gatwick

목 13/11

11:55-18:30

1 stop11h 35m

£380

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

금 9/1

19:40-10:55

1 stop10h 15m

London Gatwick

화 20/1

11:55-18:30

1 stop11h 35m

£380

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

일 9/11

19:40-10:55

1 stop10h 15m

London Gatwick

목 13/11

11:55-18:30

1 stop11h 35m

£380

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

토 11/10

20:30-14:35

1 stop13h 05m

London Gatwick

목 4/12

11:55-18:30

1 stop11h 35m

£380

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

수 15/10

23:15-14:40

1 stop10h 25m

London Gatwick

목 4/12

11:55-18:30

1 stop11h 35m

£380

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

목 13/11

19:40-10:55

1 stop10h 15m

London Gatwick

수 26/11

11:55-18:30

1 stop11h 35m

£380

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

수 15/10

20:30-14:40

1 stop13h 10m

London Gatwick

금 5/12

11:55-18:30

1 stop11h 35m

£380

Washington, D.C.London

IAD - LTN

IADLTN

Washington, D.C. Dulles Intl

수 19/11

19:40-20:50

1 stop20h 10m

London Luton

월 24/11

08:00-18:30

1 stop15h 30m

£387

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

토 24/1

12:30-09:20

2 stops15h 50m

London Heathrow

일 1/2

21:05-17:15

2 stops25h 10m

£397

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

화 21/10

09:35-17:10

2 stops26h 35m

London Stansted

금 31/10

05:55-20:59

2 stops19h 04m

£398

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 60 results

...

Best time to book a flight from Dulles Intl to London

Have a flexible travel schedule? Discover the best time to fly to London from Dulles Intl with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to London

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to London?

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to London, you should look to book at least 81 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to London?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to London (average of £112). Flying from Washington, D.C. Dulles Intl Airport to London in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to LON?

It’s optimal to fly from Washington, D.C. Dulles Intl Airport to London at midday. By choosing this option you can save up to 3% on the cost of your flight, compared to a flight in the morning.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to London

The most flights from IAD to LON are scheduled on a Monday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).

What’s the top stopover airport for flights from Washington, D.C. Dulles Intl Airport to London?

Reykjavik (KEF) – chosen by Cheapflights users on 64% of one-stop itineraries from Washington, D.C. Dulles Intl Airport to London on Cheapflights.

What’s the cheapest stopover airport for flights from Washington, D.C. Dulles Intl Airport to London?

Reykjavik (KEF) is the most affordable one-stop option, with an average return flight price of £322.

What’s the fastest stopover option from Washington, D.C. Dulles Intl Airport to London?

Flights via Dublin (DUB) have the shortest average one-way travel time for one-stop routes: 10h 12m.

Which airport typically offers the quickest stopover for flights from Washington, D.C. Dulles Intl Airport to London?

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average stopover time of 1h 26m.

Reviews of airlines servicing London

See what other customers who have flown with Virgin Atlantic, Icelandair, andIberia from Washington, D.C. Dulles Intl Airport to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Virgin Atlantic

7.4

Good

664 reviews

Check prices

Reviews

1 / 20

6.0

Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Virgin Atlantic

7.4

Good

664 reviews

Virgin Atlantic

7.4

Good

664 reviews

Check prices

Reviews

1 / 20

6.0

Good

Pratap,Aug 2025

JFK - LHR

Icelandair

7.0

Good

544 reviews

Virgin Atlantic

7.4

Good

664 reviews

Check prices

Reviews

1 / 20

6.0

Good

Pratap,Aug 2025

JFK - LHR

Iberia

7.0

Good

2,924 reviews

Virgin Atlantic

7.4

Good

664 reviews

Check prices

Reviews

1 / 20

6.0

Good

Pratap,Aug 2025

JFK - LHR

Lufthansa

6.8

Okay

7,407 reviews

Virgin Atlantic

7.4

Good

664 reviews

Check prices

Reviews

1 / 20

6.0

Good

Pratap,Aug 2025

JFK - LHR

British Airways

6.7

Okay

7,363 reviews

Virgin Atlantic

7.4

Good

664 reviews

Check prices

Reviews

1 / 20

6.0

Good

Pratap,Aug 2025

JFK - LHR

Related info for your journey

How long is the flight from Washington, D.C. Dulles Intl Airport to London?
There are many flights that can get you from Washington, D.C. Dulles Intl Airport to London in 7h 20m. Fly via Icelandair, Scandinavian Airlines, or United Airlines to get the fastest option. Airlines will cover a distance of 3664 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to London round-trip?
Flying on Lufthansa is currently your cheapest option to London, with prices starting at £304. Additional return tickets that might be worth considering are offered by Icelandair and Virgin Atlantic, with the lowest prices starting at £362 and £376, respectively. Lufthansa is 43% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to London one-way?
The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as £202. However, be on the lookout for offers from British Airways and United Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to London for a low price.
What are the most popular routes from Washington, D.C. Dulles Intl Airport to London?
The most popular flight routes from Washington, D.C. Dulles Intl Airport to London are Washington, D.C. Dulles Intl - London Heathrow, Washington, D.C. Dulles Intl - London Gatwick and Washington, D.C. Dulles Intl - London City.
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to London?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to London on time: Aeromexico (100%), KLM (80%), Air France (80%).
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to London?
Looking at all options, your cheapest flight can be booked for £308. While the most popular route (Washington, D.C. Dulles Intl - London Heathrow) can be booked for £311 on average, our data indicates £629 when flying from Washington, D.C. Dulles Intl Airport to London.
Can I find deals for flights from Dulles Intl to London that include hotel bookings?
Yes. In addition to deals on Dulles Intl to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to London.
Can I find deals for business class flights from Dulles Intl to London?
Yes. Cheapflights offers flight deals from Dulles Intl to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to London?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to London (average of £112). Flying from Washington, D.C. Dulles Intl Airport to London in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 8 airlines flying from Dulles Intl to London

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest£304	Average£516	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Icelandair	Cheapest£362	Average£513	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Virgin Atlantic	Cheapest£376	Average£600	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£379	Average£537	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Air France	Cheapest£390	Average£518	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Iberia	Cheapest£449	Average£488	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
KLM	Cheapest£452	Average£606	FlexibilityNo cancel fee	On-time75%	Search KLM flights
United Airlines	Cheapest£516	Average£615	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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How does Cheapflights help users find flights from Dulles Intl to London?

When you search for this flight from Dulles Intl to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to London?

Millions of users choose and trust Cheapflights to book the best flight deals from Dulles Intl to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Dulles Intl to London with no change fees?

Certainly. Search results for flights to London from Dulles Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Dulles Intl to London become cheaper?

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Cheap flights from Washington, D.C. Dulles Intl Airport to London from £196

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to London are usually found in January or October, booked 81 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from Dulles Intl to London

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Find flight deals from Dulles Intl to London

Cheapest flights from Dulles Intl to LondonExplore the most affordable flight options available from Dulles Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 9월 2025.

Explore the most affordable flight options available from Dulles Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 9월 2025.

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Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to London that are best for you.

Best time to book a flight from Dulles Intl to London

Have a flexible travel schedule? Discover the best time to fly to London from Dulles Intl with our price prediction graph.

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Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to London

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to London?

Use this chart to determine the optimal time to book a return flight from Dulles Intl to London. Price data was last updated on 12 September 2025.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to London?

What is the cheapest time of day to fly from IAD to LON?

Find hourly flight availability from Dulles Intl to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 9월 2025.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to London

Explore weekly flight availability from Dulles Intl to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 9월 2025.

What’s the top stopover airport for flights from Washington, D.C. Dulles Intl Airport to London?

Share of one-stop return flights from Washington, D.C. Dulles Intl Airport to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

What’s the cheapest stopover airport for flights from Washington, D.C. Dulles Intl Airport to London?

Average return fare for one-stop flights from Washington, D.C. Dulles Intl Airport to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

What’s the fastest stopover option from Washington, D.C. Dulles Intl Airport to London?

Shortest average travel time for one-stop one-way flights from Washington, D.C. Dulles Intl Airport to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Which airport typically offers the quickest stopover for flights from Washington, D.C. Dulles Intl Airport to London?

Average stopover duration for one-stop one-way flights from Washington, D.C. Dulles Intl Airport to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 17 9월 2025.

See what other customers who have flown with Virgin Atlantic, Icelandair, andIberia from Washington, D.C. Dulles Intl Airport to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Washington, D.C. Dulles Intl Airport to London?

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to London round-trip?

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to London one-way?

What are the most popular routes from Washington, D.C. Dulles Intl Airport to London?

What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to London?

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to London?

Can I find deals for flights from Dulles Intl to London that include hotel bookings?

How can I find direct flights from Dulles Intl to London?

Can I find deals for business class flights from Dulles Intl to London?

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to London?

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Alternative routes for Dulles Intl to London

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from Dulles Intl to London

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How does Cheapflights help users find flights from Dulles Intl to London?

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to London?

Can Cheapflights find flights from Dulles Intl to London with no change fees?

Can Cheapflights notify me if prices for flights from Dulles Intl to London become cheaper?

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Cheapest flights from Dulles Intl to London
Explore the most affordable flight options available from Dulles Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 9월 2025.