Cheap flights from Washington to London

Round-trip
1 adult
Economy
From?
To?
Mon 6/28
Mon 7/5

Flight information for Washington to London
(WAS to LON)

Find info about flight duration, direct flights, and airports for your flight from Washington to London
Best Price Found$344The best flight deal from Washington to London found on momondo in the last 72 hours is $344
Fastest flight time6h 55mThe fastest flight from Washington to London takes 6h 55m
Direct flightsNoneThere are no direct flights from Washington to London. Popular non-direct routes for this connection are Baltimore/Washington Airport - London Heathrow Airport, Washington Dulles Intl Airport - London Heathrow Airport and Washington Reagan-National Airport - London Heathrow Airport.
Airports in London6 airportsThere are 6 airports near London: London City (LCY), London Heathrow (LHR), London Luton (LTN), London Stansted (STN), London Gatwick (LGW), London Southend (SEN)

How to get the cheapest flight ticket from Washington to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from Washington to London?

October

The cheapest time of year to fly to London from Washington is October. Most expensive is June

What is the cheapest day to depart Washington for London?

Tuesday

The cheapest day of the week is typically Tuesday. The most expensive is typically Saturday

When is the cheapest time to fly from Washington to London?

in the evening

Washington to London flights are approximately 5% more expensive in the morning than in the evening

What is the cheapest airline that flies to London from Washington?

SWISS

Icelandair, KLM, and SAS are the most popular carriers operating from Washington to London

What is the cheapest Washington to London flight route?

Washington Dulles Intl - London Heathrow

Fly from Washington Dulles Intl to London Heathrow for the best Washington - London flight prices

How far in advance should you book Washington to London flights?

47 days before

The cheapest time to buy a flight from Washington to London is approximately 47 days to departure


Easily compare round-trip flights from Washington to London

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Washington to London by changing tabs
SAS
Sep 11
IAD1:15 pmWashington Dulles Intl
18h 10m
2 stops
LHR7:25 amLondon Heathrow
Sep 13
LHR2:45 amLondon Heathrow
13h 15m
1 stop
IAD4:00 pmWashington Dulles Intl
SAS
Oct 16
IAD1:15 pmWashington Dulles Intl
18h 10m
2 stops
LHR7:25 amLondon Heathrow
Oct 18
LHR2:45 amLondon Heathrow
13h 15m
1 stop
IAD4:00 pmWashington Dulles Intl
SAS
Sep 18
IAD1:15 pmWashington Dulles Intl
14h 40m
2 stops
LHR3:55 amLondon Heathrow
Sep 19
LHR3:30 pmLondon Heathrow
24h 30m
2 stops
IAD4:00 pmWashington Dulles Intl
SAS
Sep 18
IAD1:15 pmWashington Dulles Intl
16h 20m
2 stops
LHR5:35 amLondon Heathrow
Sep 19
LHR4:30 pmLondon Heathrow
23h 30m
1 stop
IAD4:00 pmWashington Dulles Intl
SAS
Sep 18
IAD1:15 pmWashington Dulles Intl
17h 45m
1 stop
LHR7:00 amLondon Heathrow
Sep 19
LHR3:30 pmLondon Heathrow
24h 30m
2 stops
IAD4:00 pmWashington Dulles Intl
Multiple Airlines
Aug 19
IAD1:15 pmWashington Dulles Intl
17h 00m
2 stops
SEN6:15 amLondon Southend
Aug 22
SEN9:00 amLondon Southend
31h 00m
2 stops
IAD4:00 pmWashington Dulles Intl

Find the cheapest one-way flights from Washington to London

If you're looking for one-way flights from Washington to London, view some of our deals below provided by Iberia and Lufthansa
Iberia
Oct 24
BWI4:50 pmBaltimore/Washington
7h 10m
LHR12:00 amLondon Heathrow
Lufthansa
Jul 22
IAD2:35 pmWashington Dulles Intl
7h 10m
LHR9:45 pmLondon Heathrow
Multiple Airlines
Sep 21
DCA3:00 pmWashington Reagan-National
9h 20m
1 stop
LHR12:20 amLondon Heathrow

Best airlines flying from Washington to London

Compare and see reviews for airlines that fly from Washington to London with momondo
AirlineRatingFree CancellationPrice
SAS
PriceFrom $355
Free Cancellation
Rating
8.1
8.6

Boarding

8.0

Comfort

8.7

Crew

7.4

Entertainment

7.4

Food

Reviews

Pros: No complaints.

1 / 10
Virgin Atlantic
PriceFrom $367
Free Cancellation
Rating
9.3
9.6

Boarding

8.4

Comfort

9.6

Crew

9.6

Entertainment

9.6

Food

Reviews

Pros: Although there were delays they kept us informed on a regular basis as to what to expect and seemed genuinely apologetic for any inconveniences. Boarding and deplaning were smooth and efficient. I really appreciated that there was no charge for checking a bag. I am certain that contributes to the ease of everyone getting on and off the plane. Our bags arrived at baggage claim about the same time we got there. I would definitely fly with Virgin Atlantic again.

1 / 2
Icelandair
PriceFrom $392
Free Cancellation
Rating
7.5
7.7

Boarding

7.1

Comfort

7.9

Crew

7.6

Entertainment

6.7

Food

Reviews

Pros: That I got to visit a place as mystical as Iceland for such a low and affordable flight. My departure flight with Iceland Air was on time and although the return was a bit tardy the company did an excellent job with being transparent.

Cons: The flight crew could have been a bit more polite

1 / 10
Delta
PriceFrom $415
Free Cancellation
Rating
8.1
8.3

Boarding

8.4

Comfort

8.3

Crew

7.9

Entertainment

8.1

Food

Reviews

Cons: Wouldn't let us on the flight when there was plenty of time to get there. Manager was arrogant and slow - didn't care. Poor policies at that airport.

1 / 10
United Airlines
PriceFrom $437
Free Cancellation
Rating
6.8
7.2

Boarding

6.6

Comfort

7.5

Crew

6.6

Entertainment

6.1

Food

Reviews

Cons: Sarasota ticketing agent was not very nice at all 😟 Houston Gate agent was not nice either. We were treated like we were stupid for asking questions. I hope it’s not racism issues. I wished I had taken their names.

1 / 10
American Airlines
PriceFrom $469
Free Cancellation
Rating
7.2
7.4

Boarding

7.1

Comfort

7.9

Crew

7.0

Entertainment

6.8

Food

Reviews

Pros: Delayed flight no reasons seems like American Airlines don’t know what to do in these situations

Cons: I believe this airlines should have figured the answer to this question by now.

1 / 10
Air Canada
PriceFrom $471
Free Cancellation
Rating
7.1
7.3

Boarding

7.2

Comfort

7.8

Crew

7.2

Entertainment

5.9

Food

Reviews

Pros: I managed to get a comfortable seating

1 / 10
SWISS
PriceFrom $473
Free Cancellation
Rating
8.5
8.8

Boarding

8.5

Comfort

9.0

Crew

8.0

Entertainment

8.5

Food

Reviews

Pros: Nothing. I was sold a ticket for 709 dollars and wasn’t told I couldn’t get on until showing up to the gate. Therefore I had to spend 1000 more dollars to book another ticket because budget air wouldn’t change or refund the flight.

Cons: Not selling a ticket with a layover where someone with a US passport cannot travel through at the moment. Be more forthcoming.

1 / 10
Lufthansa
PriceFrom $473
Free Cancellation
Rating
7.6
7.9

Boarding

7.6

Comfort

8.2

Crew

7.4

Entertainment

7.4

Food

Reviews

Pros: Al the flights was nice with no issues

Cons: The food that I have with Lufthansa was super bad and there’s no Choise, however, the connect flight wit with United airline have very good food and , what I want say is United airline airplane much better than Lufthansa in every thing even the seats is much nicer

1 / 10
KLM
PriceFrom $481
Free Cancellation
Rating
7.9
8.0

Boarding

8.2

Comfort

8.4

Crew

7.4

Entertainment

7.4

Food

Reviews

Pros: Yes, Very good

1 / 9

  • Are airlines flying from Washington to London offering flexible cancellation due to COVID-19?

    Some of our partner airlines flying from Washington to London are adopting new policies due to the global impact of COVID-19. Some of the airlines that may be waiving their cancellation fees are British Airways, United Airlines, and American Airlines. You can search for the full list of airlines like British Airways that are offering this flexibility.


Alternative routes for Washington to London

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Washington to Manchester Flights
Fastest flight time11h 00m
Cheapest price$318
Washington to Birmingham Flights
Fastest flight time11h 10m
Cheapest price$434
Washington to Bristol Flights
Fastest flight time11h 50m
Cheapest price$704