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.
Flight schedule from Washington-DC (WAS) to London (LON)
Select a travel date in the flight schedule for the route from Washington-DC (WAS) to London (LON) and compare affordable flight deals.
offers
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Matching outbound flights11 of 11
fromto
dep.arr.
durationstopovers
August 2 – 8, 2026
August 9 – 15, 2026
August 16 – 22, 2026
IADLGW
1 stopover
IADLHR
1 stopover
IADLHR
nonstop
IADLHR
nonstop
DCALHR
1 stopover
IADLHR
nonstop
IADLHR
1 stopover
IADLHR
nonstop
IADLHR
nonstop
IADLHR
nonstop
IADLHR
nonstop
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
Frequently Asked Questions (FAQ)
Flights from Washington-DC to London are most frequently searched for travel in February, September and October. If you are planning to fly in one of these months, it may be worth comparing offers early. Outside the most popular months, you may find more options or cheaper connections.
