Flights from Washington DC to London

Our cheapest offers for flights from Washington DC to London

Here you can compare cheap flights from Washington DC (WAS) to London (LON) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to London. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Washington-DC
London
Outbound
03/04/25
1 Stopover (KEF)
FI0644, FI0454
18h 50min
Return
03/29/25
1 Stopover (KEF)
FI0455, FI0645
26h 35min
Icelandair
$430
Best option
Washington-DC
London
Outbound
02/09/25
direct
AY5416
07h 15min
Return
02/21/25
direct
AY5417
08h 25min
Finnair
$568
Washington-DC
London
Outbound
03/04/25
1 Stopover (KEF)
FI0644, FI0454
18h 50min
Return
03/29/25
1 Stopover (KEF)
FI0455, FI0645
26h 35min
Icelandair
$431
Washington-DC
London
Outbound
02/23/25
1 Stopover (CPH)
SK0926, SK0505
17h 50min
Return
03/15/25
1 Stopover (CPH)
SK0500, SK0925
14h 00min
SAS Scandinavian Airlines ?
$437
Washington-DC
London
Outbound
03/21/25
1 Stopover (CPH)
SK0926, SK0505
17h 50min
Return
04/10/25
1 Stopover (CPH)
SK0502, SK0925
14h 39min
SAS Scandinavian Airlines
$441
Washington-DC
London
Outbound
03/21/25
1 Stopover (CPH)
SK0926, SK0501
11h 10min
Return
04/10/25
2 Stopovers (OSL, CPH)
SK0802, SK1467, SK0925
17h 54min
SAS Scandinavian Airlines
$442
Washington-DC
London
Outbound
03/21/25
1 Stopover (CPH)
SK0926, SK0505
17h 50min
Return
04/10/25
1 Stopover (CPH)
SK0502, SK0925
14h 39min
SAS Scandinavian Airlines
$443
Washington-DC
London
Outbound
03/21/25
1 Stopover (CPH)
SK0926, SK0505
17h 50min
Return
04/10/25
1 Stopover (CPH)
SK0502, SK0925
14h 39min
SAS Scandinavian Airlines ?
$447
Washington-DC
London
Outbound
02/07/25
1 Stopover (KEF)
FI0644, FI0454
18h 50min
Return
03/09/25
1 Stopover (KEF)
FI0455, FI0645
26h 45min
Icelandair ?
$449
Washington-DC
London
Outbound
02/23/25
1 Stopover (CPH)
SK0926, SK0501
11h 10min
Return
03/15/25
1 Stopover (CPH)
SK0500, SK0925
14h 00min
SAS Scandinavian Airlines ?
$452
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Washington DC to London

Favorite airline: Aer Lingus
Aer Lingus is the most popular airline for flights from Washington-DC to London.
Aer Lingus
29 %
Icelandair
23 %
British Airways
16 %
Cheapest weekday: Tuesday
Compared to other weekdays, flights are cheapest on Tuesday.
Stopover flights are the cheapest connection
Flights with a stopover are on average $129.00 cheaper than direct flights.
non stop flight
1 stop
2 stops
07h 20min
18h 45min
21h 40min
$562
$433
$599
Favourite connection: via Dublin
Stopover flights on this route are especially popular via Dublin, making up 33 % of bookings.
Route
bookings
1 stopover Dublin
11h 00min, from $442
33 %
1 stopover Reykjavik-Keflavik International
18h 45min, from $433
27 %
Direct flights
07h 20min, from $562
22 %

Useful information about the flight from Washington DC to London

Flights from Washington D.C. to London

In all honesty the best flight route between Washington DC and London is on Air Force 1, but considering that idealo has not quite managed to secure a deal with that airline, there are a few very good plan B options. British Airways, United and Virgin Atlantic will take you the 3 and half thousand miles across the pond in just over 7 hours. And with between 7 and 8 direct flights a day to choose from, you might just find yourself feeling somewhat presidential as you swoop over Buckingham Palace.

Cheap flights from Washington to London

The best way to get a low cost air ticket would be to consider having a few stops on your trip. Airlines that offer good deals with one stop are American and Air France. But if you plan well in advance there often is little price difference between direct flights and ones with stop overs, so booking early remains your best way to save money.

Destination London

Regardless of which airport you choose to land in, although the most likely would probably be Heathrow Internationl Airport if you are on a direct flight, getting around the city will not be a problem. It just so happens that London has the oldest subway network in the world, so they Brits are practiced in getting you were you need to be fast and in old world style.

Important flight information

Flight information: Washington-DC - London

Roundtrip from $429.01
Flight duration min. 07:00 / max. 08:22
Return flight duration min. 08:20/ max. 08:45
Distance 5903 km
Flights per week 53
Departure airport Airport Washington-DC (WAS)
Arrival airport Airport London, all Airports (LCY, LGW, LHR, LTN, STN, SEN) (LON)
Destination country Flights to United Kingdom
Alternative flights to London
Flight destinations with a similar price
Flight destinations with a similar price