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

Departing from Washington, D.C. to London will take you 7h 25m. The distance between Washington, D.C. and London is about 3664 mi. Both multi-stop and direct flights can be found to your destination and back.

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

British Airways, at £425, was found to be the cheapest airline from Washington, D.C. to London.Alternate airlines flying return to your destination include Virgin Atlantic and Icelandair. These flights start at 32% lower than the current average price 3 months from now.

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

The cheapest airline one-way is Virgin Atlantic, with whom users have recently found tickets for as low as £211. 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. to London for a low price.

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. to London?

The most popular route from Washington, D.C. to London is Washington, D.C. Dulles Intl - London Heathrow. You may also consider Baltimore/Washington - London Heathrow or Washington, D.C. Dulles Intl - London Gatwick.

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

Looking at all options, your cheapest flight can be booked for £224. While the most popular route (Washington, D.C. Dulles Intl - London Heathrow) can be booked for £398 on average, our data indicates £608 when flying from Washington, D.C. to London.

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

Before booking your flight to London from Washington, D.C., check out the most reliable airlines to get you to your destination on time: SAUDIA (69%), Aer Lingus (68%), Iberia( 68%).

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

Before booking your flight from Washington, D.C. to London check out the most popular airlines for this route: British Airways, United Airlines or Virgin Atlantic.

Can I find deals for flights from Washington, D.C. to London that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to London flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to London?

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

Can I find deals for business class flights from Washington, D.C. to London?

Yes. Cheapflights offers flight deals from Washington, D.C. 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.

£159+ Cheap Flights from Washington, D.C. to London

Cheapflights Tip: The best prices from Washington, D.C. to London are usually found in January or February, booked 17 days in advance, depart on a Monday or Tuesday and return on a Friday

Cheap flight deals from Washington, D.C. to London

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Washington, D.C. to London
Explore the most affordable flight options available from Washington, D.C. to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Tue 20/1023:20 -

2 stops14h 10m

Tue 27/1006:40 -

2 stops17h 00m

Deal found 6/9£503

Sat 7/1117:15 -

1 stop11h 20m

Tue 10/1107:15 -

1 stop13h 30m

Deal found 9/9£503

Fri 2/1020:55 -

1 stop16h 25m

Tue 6/1008:50 -

1 stop11h 55m

Deal found 9/9£503

Fri 6/1119:40 -

1 stop13h 15m

Sat 14/1107:00 -

1 stop16h 40m

Deal found 7/9£503

Tue 17/1119:40 -

2 stops17h 05m

Sun 22/1106:30 -

2 stops17h 10m

Deal found 7/9£503

Sun 20/918:19 -

1 stop11h 31m

Tue 29/914:10 -

1 stop14h 00m

Deal found 9/9£503

Tue 20/1020:30 -

2 stops14h 30m

Tue 27/1006:40 -

2 stops16h 50m

Deal found 9/9£503

Mon 14/1219:40 -

1 stop13h 25m

Mon 21/1208:00 -

1 stop15h 30m

Deal found 9/9£503

Fri 2/1017:15 -

1 stop9h 35m

Tue 6/1008:30 -

1 stop12h 15m

Deal found 9/9£504

Tue 29/920:20 -

1 stop16h 30m

Tue 6/1009:25 -

1 stop12h 20m

Deal found 10/9£504

Sun 1/1119:40 -

2 stops32h 40m

Thu 5/1119:30 -

2 stops28h 10m

Deal found 6/9£504

Sun 1/1119:40 -

1 stop14h 25m

Sat 7/1107:00 -

1 stop16h 30m

Deal found 9/9£504

Best flights from Washington, D.C. to London
Discover carefully curated flight deals from Washington, D.C. to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Sun 27/917:15 -

1 stop13h 10m

Sun 4/1009:00 -

1 stop15h 25m

Deal found 9/9£523

Tue 6/1009:40 -

1 stop15h 50m

Tue 13/1009:30 -

1 stop11h 10m

Deal found 9/9£545

Wed 23/921:45 -

1 stop13h 15m

Tue 6/1010:35 -

1 stop14h 00m

Deal found 9/9£549

Wed 2/1218:55 -

Nonstop7h 25m

Sun 6/1208:55 -

1 stop15h 25m

Deal found 8/9£572

Wed 28/1023:30 -

2 stops30h 30m

Wed 4/1116:35 -

1 stop27h 40m

Deal found 6/9£586

Thu 29/1017:15 -

1 stop9h 35m

Tue 3/1115:50 -

1 stop12h 05m

Deal found 9/9£587

Tue 3/1112:30 -

2 stops24h 10m

Wed 18/1119:50 -

2 stops26h 25m

Deal found 9/9£619

Thu 29/1014:30 -

1 stop21h 50m

Tue 3/1117:20 -

1 stop24h 25m

Deal found 9/9£631

Tue 13/1023:20 -

1 stop10h 20m

Mon 19/1015:40 -

1 stop32h 45m

Deal found 5/9£642

Fri 25/906:30 -

1 stop9h 15m

Sat 26/911:55 -

1 stop16h 04m

Deal found 9/9£662

Sun 8/1118:55 -

Nonstop7h 10m

Sun 15/1109:55 -

1 stop12h 22m

Deal found 9/9£686

Sun 4/1009:27 -

1 stop19h 33m

Wed 7/1014:00 -

1 stop32h 30m

Deal found 9/9£528

Mon 26/1019:40 -

1 stop16h 05m

Tue 3/1110:00 -

2 stops18h 16m

Deal found 9/9£556

Wed 9/1206:15 -

1 stop18h 40m

Sun 13/1213:00 -

2 stops37h 38m

Deal found 9/9£573

Tue 6/1020:25 -

2 stops31h 05m

Mon 12/1021:05 -

2 stops26h 45m

Deal found 9/9£535

Mon 25/117:25 -

2 stops22h 10m

Sat 30/116:35 -

1 stop33h 00m

Deal found 6/9£613

Tue 6/1011:05 -

2 stops17h 30m

Thu 15/1007:05 -

2 stops20h 50m

Deal found 7/9£626

Tue 6/1022:05 -

Nonstop7h 35m

Tue 13/1009:55 -

1 stop10h 40m

Deal found 6/9£629

Wed 7/1021:40 -

1 stop31h 15m

Wed 14/1010:50 -

1 stop29h 40m

Deal found 6/9£631

Tue 3/1116:45 -

1 stop11h 15m

Sun 8/1111:45 -

2 stops16h 19m

Deal found 9/9£582

Tue 3/1113:09 -

1 stop12h 46m

Thu 5/1109:20 -

1 stop11h 35m

Deal found 9/9£662

Thu 24/911:57 -

1 stop13h 48m

Sun 11/1009:30 -

1 stop11h 10m

Deal found 9/9£619

Sat 26/1219:40 -

1 stop10h 15m

Fri 8/111:55 -

1 stop11h 35m

Deal found 8/9£687

Fri 16/1017:30 -

1 stop9h 25m

Tue 20/1010:00 -

1 stop10h 35m

Deal found 5/9£687

Mon 7/1218:55 -

Nonstop7h 25m

Thu 10/1211:45 -

1 stop33h 10m

Deal found 4/9£629

Sun 4/1014:03 -

1 stop12h 12m

Sun 11/1011:15 -

1 stop17h 29m

Deal found 9/9£587

Wed 9/1211:55 -

2 stops16h 25m

Mon 14/1219:30 -

2 stops31h 54m

Deal found 7/9£650

Sun 8/1113:30 -

1 stop15h 25m

Fri 20/1117:20 -

1 stop31h 05m

Deal found 7/9£653

Sat 7/1106:15 -

1 stop9h 44m

Tue 17/1109:20 -

1 stop11h 35m

Deal found 6/9£662

Fri 27/1119:40 -

2 stops15h 25m

Tue 1/1207:45 -

2 stops15h 55m

Deal found 8/9£604

Find flight deals from Washington, D.C. to London

Round-trip from	£503
One-way from	£159
Popular in	June
Cheapest in	January
Average price	£657
Good round-trip deal	£688 or less
Good one-way deal	£341 or less

20/10-27/10
4 total stops
31h 10m total
Washington, D.C. to London

Search Deals

20/10-31/12
1 total stop
33h 55m total
Washington, D.C. to London

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (£106 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

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

Search Deals

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

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BaltimoreLondon

BWI Baltimore/Washington - LTN London Luton

BWILTN

Baltimore/Washington

Sun 25/10

20:40-07:35

3 stops30h 55m

London Luton

Wed 31/12

00:00-18:00

Nonstop0h 00m

£222

BaltimoreLondon

BWI Baltimore/Washington - LTN London Luton

BWILTN

Baltimore/Washington

Fri 27/11

19:40-21:05

2 stops20h 25m

London Luton

Wed 31/12

00:00-18:00

Nonstop0h 00m

£232

Fastest return journey

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Wed 10/2

18:55-07:05

Nonstop7h 10m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£241

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - STN London Stansted

IADSTN

Washington, D.C. Dulles Intl

Sat 28/11

17:25-18:25

2 stops20h 00m

London Stansted

Wed 31/12

00:00-18:00

Nonstop0h 00m

£241

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LTN London Luton

IADLTN

Washington, D.C. Dulles Intl

Sat 19/9

11:25-11:25

2 stops43h 00m

London Luton

Wed 31/12

00:00-18:00

Nonstop0h 00m

£242

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LHR London Heathrow

DCALHR

Washington, D.C. Reagan-National

Wed 7/10

06:30-20:45

1 stop9h 15m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£243

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LHR London Heathrow

DCALHR

Washington, D.C. Reagan-National

Tue 27/10

15:54-06:55

1 stop11h 01m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£243

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LHR London Heathrow

DCALHR

Washington, D.C. Reagan-National

Mon 26/10

06:15-21:40

1 stop11h 25m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£243

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LHR London Heathrow

DCALHR

Washington, D.C. Reagan-National

Tue 12/1

09:00-07:10

2 stops17h 10m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£246

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - STN London Stansted

IADSTN

Washington, D.C. Dulles Intl

Fri 27/11

19:40-15:30

2 stops14h 50m

London Stansted

Wed 31/12

00:00-18:00

Nonstop0h 00m

£246

Flights are sorted by cheapest return flights first.

Deals found on 8/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from Washington, D.C. to London

Have a flexible travel schedule? Discover the best time to fly to London from Washington, D.C. with our price prediction graph.

WAS-LON

BWI-LHR

IAD-LGW

DCA-LHR

BWI-LGW

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. to London

WAS-LON

BWI-LHR

IAD-LGW

DCA-LHR

BWI-LGW

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to London (average of £492). Flying from Washington, D.C. to London in June is currently the most expensive (average of £933). 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 WAS to LON?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. to London as you normally would.

Weekly flight availability from Washington, D.C. to London

The most flights from WAS to LON are scheduled on a Wednesday (29 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (18 on average).

How much does it cost for a return flight from Washington, D.C. to London?

Airfare is below average for this route at the moment.

Washington, D.C. to London flights typically cost between £503 and £763 in October.
The cheapest return price found within the last 5 days was £503 on Multiple Airlines (20 Oct–27 Oct).

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

Dublin (DUB) – chosen by Cheapflights users on 47% of one-stop itineraries from Washington, D.C. to London on Cheapflights.

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

Lisbon (LIS) is the most affordable one-stop option, with an average return flight price of £492.

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

Flights via New York (JFK) have the shortest average one-way travel time for one-stop routes: 9h 35m.

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

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average stopover time of 1h 20m.

How often are flights from Washington, D.C. to London delayed?

About 17% of weekly flights between Washington, D.C. and London have experienced delays in the past year, with the average delay time being 172 minutes.

What is the most punctual flight time for Washington, D.C. to London flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to London flights?

Over the past year, Virgin Atlantic have had the lowest number of delays on this route, with just 13% of flights being delayed.

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

The best time to book flights from Washington, D.C. to London is 73 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing London

Read reviews from past customers who have flown with KLM,United Airlines, andVirgin Atlantic from Washington, D.C. to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,576 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

KLM

7.8

Good

1,576 reviews

KLM

7.8

Good

1,576 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

United Airlines

7.4

Good

10,194 reviews

KLM

7.8

Good

1,576 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

Virgin Atlantic

7.4

Good

694 reviews

KLM

7.8

Good

1,576 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

TAP AIR PORTUGAL

7.2

Good

2,387 reviews

KLM

7.8

Good

1,576 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

British Airways

6.7

Okay

8,210 reviews

KLM

7.8

Good

1,576 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Abhisek,Aug 2026

JFK - AMS

They didn’t offer any options for breakfast and had only one option which was cold meat and cheese. I would expect at least one more option in premium economy

Related info for your journey

How long is the flight from Washington, D.C. to London?
Departing from Washington, D.C. to London will take you 7h 25m. The distance between Washington, D.C. and London is about 3664 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Washington, D.C. to London round-trip?
British Airways, at £425, was found to be the cheapest airline from Washington, D.C. to London.Alternate airlines flying return to your destination include Virgin Atlantic and Icelandair. These flights start at 32% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Washington, D.C. to London one-way?
The cheapest airline one-way is Virgin Atlantic, with whom users have recently found tickets for as low as £211. 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. to London for a low price.
What are the most popular routes from Washington, D.C. to London?
The most popular route from Washington, D.C. to London is Washington, D.C. Dulles Intl - London Heathrow. You may also consider Baltimore/Washington - London Heathrow or Washington, D.C. Dulles Intl - London Gatwick.
What are the most reliable airlines from Washington, D.C. to London?
Before booking your flight to London from Washington, D.C., check out the most reliable airlines to get you to your destination on time: SAUDIA (69%), Aer Lingus (68%), Iberia( 68%).
What are the cheapest flights from Washington, D.C. to London?
Looking at all options, your cheapest flight can be booked for £224. While the most popular route (Washington, D.C. Dulles Intl - London Heathrow) can be booked for £398 on average, our data indicates £608 when flying from Washington, D.C. to London.
Can I find deals for flights from Washington, D.C. to London that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to London.
Can I find deals for business class flights from Washington, D.C. to London?
Yes. Cheapflights offers flight deals from Washington, D.C. 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. to London?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to London (average of £492). Flying from Washington, D.C. to London in June is currently the most expensive (average of £933). 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.

See more FAQs

Hounslow

Milton Keynes

Luton

Gatwick

Wembley

Slough

Ilford

Hayes

Croydon

Colchester

Eastbourne

Brentford

Enfield

Southend-on-Sea

Barnet

Watford

Southall

Kingston upon Thames

Dover

Ipswich

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to England

Flights by cabin class

London flight routes

Other flight options

Other flights from Washington, D.C.

Popular flights

Top destinations

Alternative routes for Washington, D.C. to London

Top 5 airlines flying from Washington, D.C. to London

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£390	Average£631	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£425	Average£643	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£446	Average£586	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
United Airlines	Cheapest£489	Average£716	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Delta	Cheapest£588	Average£954	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights

Fly with Cheapflights

How does Cheapflights help users find flights from Washington, D.C. to London?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Washington, D.C. to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to London?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Washington, D.C. to London.

Can Cheapflights find flights from Washington, D.C. to London with no change fees?

Certainly. Search results for flights to London from Washington, D.C. 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 Washington, D.C. to London become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Washington, D.C. today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Washington, D.C. to London from £159

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Washington, D.C. to London

Cheapest flights from Washington, D.C. to LondonExplore the most affordable flight options available from Washington, D.C. to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Explore the most affordable flight options available from Washington, D.C. to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Best flights from Washington, D.C. to LondonDiscover carefully curated flight deals from Washington, D.C. to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Discover carefully curated flight deals from Washington, D.C. to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Direct flights from Washington, D.C. to LondonExplore direct flight options from Washington, D.C. to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 September 2026.

Explore direct flight options from Washington, D.C. to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 September 2026.

Last-minute flights from Washington, D.C. to LondonDiscover last-minute flight deals from Washington, D.C. to London. Data last updated 10 September 2026 and is based on user searches.

Discover last-minute flight deals from Washington, D.C. to London. Data last updated 10 September 2026 and is based on user searches.

One-way flights from Washington, D.C. to LondonSearch for one-way flight options from Washington, D.C. to London. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Search for one-way flight options from Washington, D.C. to London. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Find flight deals from Washington, D.C. to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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

Best time to book a flight from Washington, D.C. to London

Have a flexible travel schedule? Discover the best time to fly to London from Washington, D.C. with our price prediction graph.

Cheapflights Insights

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

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

Find hourly flight availability from Washington, D.C. 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 10 September 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. to London as you normally would.

Weekly flight availability from Washington, D.C. to London

The most flights from WAS to LON are scheduled on a Wednesday (29 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (18 on average).

How much does it cost for a return flight from Washington, D.C. to London?

Airfare is below average for this route at the moment.

Washington, D.C. to London flights typically cost between £503 and £763 in October.The cheapest return price found within the last 5 days was £503 on Multiple Airlines (20 Oct–27 Oct).

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

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

Dublin (DUB) – chosen by Cheapflights users on 47% of one-stop itineraries from Washington, D.C. to London on Cheapflights.

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

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

Lisbon (LIS) is the most affordable one-stop option, with an average return flight price of £492.

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

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

Flights via New York (JFK) have the shortest average one-way travel time for one-stop routes: 9h 35m.

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

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

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average stopover time of 1h 20m.

How often are flights from Washington, D.C. to London delayed?

About 17% of weekly flights between Washington, D.C. and London have experienced delays in the past year, with the average delay time being 172 minutes.

What is the most punctual flight time for Washington, D.C. to London flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to London flights?

Over the past year, Virgin Atlantic have had the lowest number of delays on this route, with just 13% of flights being delayed.

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

The best time to book flights from Washington, D.C. to London is 73 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing London

Read reviews from past customers who have flown with KLM,United Airlines, andVirgin Atlantic from Washington, D.C. to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

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

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

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

Can I find deals for flights from Washington, D.C. to London that include hotel bookings?

How can I find direct flights from Washington, D.C. to London?

Can I find deals for business class flights from Washington, D.C. to London?

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

Travelling to a place near London?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington, D.C. to London

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

Complete your trip

Complete your trip to London by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from Washington, D.C. to London by cabin class

Cheapest flights from Washington, D.C. to London
Explore the most affordable flight options available from Washington, D.C. to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 September 2026.

Best flights from Washington, D.C. to London
Discover carefully curated flight deals from Washington, D.C. to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 September 2026.

Direct flights from Washington, D.C. to London
Explore direct flight options from Washington, D.C. to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 September 2026.

Last-minute flights from Washington, D.C. to London
Discover last-minute flight deals from Washington, D.C. to London. Data last updated 10 September 2026 and is based on user searches.

One-way flights from Washington, D.C. to London
Search for one-way flight options from Washington, D.C. to London. Find affordable one-way fares based on user searches. Data last updated 10 September 2026.

Washington, D.C. to London flights typically cost between £503 and £763 in October.
The cheapest return price found within the last 5 days was £503 on Multiple Airlines (20 Oct–27 Oct).