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Cheap flights from London to Washington, D.C. from £226

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 16/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — WAS
30 nov — 7 dez1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to Washington, D.C. are usually found in February or September, booked 78 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

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

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 31 outubro 2025.

Round-trip from

£411

One-way from

£226

Popular in

July

Cheapest in

February

Average price

£565

Good round-trip deal

£525 or less

Good one-way deal

£427 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 22/1-25/1
  • 2 total stops
  • 47h 30m total
  • London to Washington, D.C.
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16/1
  • 16/1
  • 1 total stop
  • 25h 52m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£53 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from London (LON) to Washington, D.C. (WAS).
Search Deals
Price to beat on a one-way flight from London (LON) to Washington, D.C. (WAS).
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Find flight deals from London to Washington, D.C.

Enter your travel dates to find the best prices.

Cheapest flights from London to Washington, D.C.
Explore the most affordable flight options available from London to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 outubro 2025.

seg 29/1208:50LTN - IAD
1 stop15h 40mMultiple Airlines
dom 4/121:00IAD - LTN
1 stop9h 45mMultiple Airlines
Deal found 28/10£414
qui 20/1114:00LGW - IAD
1 stop22h 50mMultiple Airlines
ter 2/1217:30IAD - LGW
2 stops18h 25mMultiple Airlines
Deal found 28/10£415
qua 3/1207:25LHR - DCA
1 stop20h 33mJetBlue
ter 9/1215:40DCA - LHR
1 stop10h 15mJetBlue
Deal found 30/10£417
seg 17/1108:05LHR - DCA
1 stop11h 31mJetBlue
seg 1/1206:15DCA - LHR
1 stop9h 30mJetBlue
Deal found 29/10£426
ter 2/1206:00LHR - IAD
1 stop13h 35mTAP AIR PORTUGAL
ter 9/1217:30IAD - LHR
1 stop23h 05mTAP AIR PORTUGAL
Deal found 29/10£429
seg 29/1206:30STN - IAD
1 stop18h 00mMultiple Airlines
dom 4/121:00IAD - STN
1 stop18h 05mMultiple Airlines
Deal found 28/10£430
ter 2/1207:25LHR - DCA
1 stop20h 33mJetBlue
dom 7/1218:59DCA - LHR
1 stop30h 56mJetBlue
Deal found 29/10£431
sáb 6/1218:30LHR - IAD
1 stop31h 30mTAP AIR PORTUGAL
dom 25/122:30IAD - LHR
1 stop18h 05mTAP AIR PORTUGAL
Deal found 30/10£432
sex 12/1205:50LTN - IAD
1 stop14h 45mMultiple Airlines
sex 19/1217:05IAD - LTN
1 stop10h 50mMultiple Airlines
Deal found 28/10£433
seg 24/1114:00LGW - IAD
1 stop22h 45mMultiple Airlines
seg 8/1218:58IAD - LGW
2 stops30h 02mMultiple Airlines
Deal found 29/10£433
qua 10/1209:20LHR - DCA
1 stop11h 40mIcelandair
dom 14/1220:49DCA - LHR
1 stop29h 06mIcelandair
Deal found 30/10£433
qui 4/1214:00LGW - BWI
1 stop15h 23mMultiple Airlines
sex 9/108:42BWI - LGW
1 stop20h 18mMultiple Airlines
Deal found 28/10£433

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 31 outubro 2025.
Use the filters below to find and compare flights from London to Washington, D.C. that are best for you.

Fly from

London

Fly to

Washington, D.C.

Route

Depart

Return

Price

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

qua 18/2

09:20-16:04

1 stop11h 44m

Washington, D.C. Reagan-National

qua 25/2

06:05-20:45

1 stop9h 40m

£414

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

qui 22/1

06:30-18:30

2 stops17h 00m

Washington, D.C. Dulles Intl

dom 25/1

19:40-20:05

2 stops19h 25m

£416

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

seg 29/12

06:30-19:30

1 stop18h 00m

Washington, D.C. Dulles Intl

dom 4/1

21:00-20:05

1 stop18h 05m

£430

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

qui 4/12

14:35-16:05

2 stops30h 30m

Washington, D.C. Dulles Intl

qua 10/12

18:05-19:40

2 stops20h 35m

£439

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

qua 3/12

09:20-18:04

1 stop13h 44m

Washington, D.C. Reagan-National

seg 8/12

15:40-06:55

1 stop10h 15m

£444

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

seg 12/1

09:20-17:35

1 stop13h 15m

Washington, D.C. Reagan-National

seg 26/1

13:00-06:55

1 stop12h 55m

£445

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

sex 12/12

05:55-21:00

2 stops20h 05m

Washington, D.C. Dulles Intl

ter 13/1

17:30-23:50

2 stops25h 20m

£445

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

seg 24/11

08:05-14:59

1 stop11h 54m

Washington, D.C. Reagan-National

ter 9/12

06:00-21:40

1 stop10h 40m

£455

LondonBaltimore

LGW - BWI

LGWBWI

London Gatwick

seg 9/3

11:55-19:40

1 stop11h 45m

Baltimore/Washington

seg 16/3

20:40-10:55

1 stop10h 15m

£479

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

sáb 13/12

06:30-17:04

2 stops15h 34m

Baltimore/Washington

dom 18/1

11:29-09:00

1 stop16h 31m

£480

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Showing 1-10 of 60 results
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Best time to book a flight from London to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from London 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 London to Washington, D.C.

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

Use this chart to determine the optimal time to book a return flight from London to Washington, D.C.. Price data was last updated on 24 October 2025.

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from London to Washington, D.C. (average of £231). Flying from London to Washington, D.C. in July is currently the most expensive (average of £486). 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 LON to WAS?

Find hourly flight availability from London to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 outubro 2025.

A simple way to save on the total cost of your ticket is to fly from London to Washington, D.C. in the morning. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight at midday.

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

Use this chart to determine the cheapest time to fly return from London to Washington, D.C.. Price data was last updated on 16 December 2024.

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

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

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

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

Reykjavik (KEF) – chosen by Cheapflights users on 48% of one-stop itineraries from London to Washington, D.C. on Cheapflights.

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

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

Shannon (SNN) is the most affordable one-stop option, with an average return flight price of £344.

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

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

Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 10h 35m.

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

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

Flights via New York (JFK) offer the fastest connection on this route, with an average stopover time of 1h 11m.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated 31 outubro 2025.
Check out reviews from past customers who have flown with Virgin Atlantic, Icelandair, andPLAY from London to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Crew

8.1

Overall

7.5

Boarding

7.7

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
7.5
Good
670 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Crew

8.1

Overall

7.5

Boarding

7.7

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!
Icelandair
7.1
Good
562 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Crew

8.1

Overall

7.5

Boarding

7.7

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!
PLAY
7.0
Good
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Crew

8.1

Overall

7.5

Boarding

7.7

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!
Lufthansa
6.8
Okay
7,541 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Crew

8.1

Overall

7.5

Boarding

7.7

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!
British Airways
6.7
Okay
7,487 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Crew

8.1

Overall

7.5

Boarding

7.7

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!

Related info for your journey

Find useful and relevant information for your journey from London to Washington, D.C.. 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 London to Washington, D.C.?

    For as low as £414, JetBlue can have you in Washington, D.C. from London in 11h 44m. The distance from London to Washington, D.C. is about 3652 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 London to Washington, D.C. round-trip?

    According to our current data, Delta (£192), TAP AIR PORTUGAL (£360), and Icelandair (£370) offers the cheapest pricing from London to Washington, D.C.. Users have found that Delta is 65% cheaper than the other options available to this destination.

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

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as £383. Users have also found prices from £385 and £395 on Icelandair and Aer Lingus, respectively.

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

    When deciding which route to take from London to Washington, D.C. consider London Heathrow - Washington, D.C. Dulles Intl, London Heathrow - Baltimore/Washington or London Heathrow - Washington, D.C. Reagan-National as they are the most popular.

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

    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 London to Washington, D.C. on time: KLM (89%), Air France (89%), Delta (89%).

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

    While on average a flight from London to Washington, D.C. is generally £1,522, our data shows the cheapest flight currently is £416. When looking at the most popular route, (London Heathrow - Washington, D.C. Dulles Intl), you can expect to pay £389 for that flight.

  • Where are the most common stopover locations when flying from London to Washington, D.C.?

    Most of the time, London to Washington, D.C. flights that have stopovers will stop in Reykjavik.

  • What are some popular things to do or see while on a stopover in Reykjavik?

    If you're on a stopover in Reykjavik and looking for things to do, consider visiting Harpa, National Cathedral, or Reykjavik Free Church. Travelers on a layover in Reykjavik can visit Harpa, National Cathedral, and Reykjavik Free Church, by traveling 23.3 mi, 23.0 mi, and 22.9 mi, respectively after landing at Reykjavik Keflavik Intl. Travellers can book a car hire at Reykjavik Keflavik Intl for about £34 per day to make their sightseeing more efficient.

  • Where are the least popular stopover locations for London to Washington, D.C. flights?

    Flights departing from London and landing in Washington, D.C. stopover in Dublin least frequently.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to Washington, D.C. 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 London to Washington, D.C.?

    Currently, February is the cheapest month in which you can book a flight from London to Washington, D.C. (average of £231). Flying from London to Washington, D.C. in July is currently the most expensive (average of £486). 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

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Woodbridge
Arlington
Alexandria
College Park
Tysons

Browse thousands of different options on Cheapflights for your next trip

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Fly from London to Washington, D.C. on these airlines

Choose from the following airlines for your flight from London to Washington, D.C.. Flights are based on user searches made on Cheapflights and were last updated on 31 outubro 2025.
British Airways flights from London to Washington, D.C.
Virgin Atlantic flights from London to Washington, D.C.
PLAY flights from London to Washington, D.C.
Finnair flights from London to Washington, D.C.

Top 10 airlines flying from London to Washington, D.C.

Discover the top 10 airlines that operate flights from London to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 31 outubro 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£192Average£527FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
PLAYCheapest£273Average£400FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
IcelandairCheapest£352Average£520FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapest£360Average£500FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
JetBlueCheapest£389Average£628FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Aer LingusCheapest£395Average£713FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£413Average£571FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£428Average£646FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
FinnairCheapest£430Average£655FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Scandinavian AirlinesCheapest£440Average£589FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

When you search for this flight from London to Washington, D.C., 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 London to Washington, D.C.?

Cheapflights simply makes it quick and affordable to book flights from London to Washington, D.C. by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to Washington, D.C. from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from London to Washington, D.C. become cheaper?

Of course! You can now track prices for flights from London to Washington, D.C. and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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