| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Washington DC London Heathrow | Outbound 09/04/25 1 Stopover (CPH) SK0926, SK1517 14h 35min | Return 09/20/25 1 Stopover (CPH) SK0500, SK0925 18h 19min |  SAS Scandinavian Airlines |  | ? | $491 | |
| Best option Washington DC London Heathrow | Outbound 09/09/25 direct AY5532 07h 25min | Return 10/08/25 direct AY5533 08h 15min |  Finnair |  | $595 | ||
| Washington DC London Heathrow | Outbound 10/18/25 1 Stopover (LIS) TP0234, TP1350 14h 10min | Return 10/24/25 1 Stopover (LIS) TP1351, TP0231 12h 20min |  TAP Air Portugal |  | $568 | ||
| Washington DC London Heathrow | Outbound 09/22/25 1 Stopover (KEF) FI0644, FI0450 10h 25min | Return 10/15/25 1 Stopover (KEF) FI0451, FI0645 11h 15min |  Icelandair |  | ? | $492 | |
| Washington DC London Heathrow | Outbound 09/04/25 1 Stopover (CPH) SK0926, SK1517 14h 35min | Return 09/20/25 1 Stopover (CPH) SK0506, SK0925 31h 59min | SAS Scandinavian Airlines | | ? | $492 | |
| Washington DC London Heathrow | Outbound 09/04/25 1 Stopover (CPH) SK0926, SK1517 14h 35min | Return 09/20/25 1 Stopover (CPH) SK0500, SK0925 18h 19min | SAS Scandinavian Airlines |  | ? | $494 | |
| Washington DC London Heathrow | Outbound 09/19/25 1 Stopover (KEF) FI0644, FI0454 18h 50min | Return 09/29/25 1 Stopover (KEF) FI0455, FI0645 26h 55min | Icelandair |  | $496 | ||
| Washington DC London Heathrow | Outbound 09/04/25 1 Stopover (CPH) SK0926, SK1517 14h 35min | Return 09/20/25 1 Stopover (CPH) SK0506, SK0925 31h 59min | SAS Scandinavian Airlines |  | $497 | ||
| Washington DC London Heathrow | Outbound 09/19/25 1 Stopover (KEF) FI0644, FI0454 18h 50min | Return 09/29/25 1 Stopover (KEF) FI0455, FI0645 26h 55min | Icelandair | | $498 | ||
| Washington DC London Heathrow | Outbound 09/22/25 1 Stopover (KEF) FI0644, FI0450 10h 25min | Return 10/15/25 1 Stopover (KEF) FI0451, FI0645 11h 15min | Icelandair | | ? | $499 |
Stops
- Direct flight
Airline
- SAS Scandinavian Airlines
- Virgin Atlantic Airways
- Icelandair
- United Airlines
- Aer Lingus Irish Airlines
Tips and tricks to help you find cheap flights from Washington DC to London Heathrow
Favorite airline: Aer Lingus
Aer Lingus is the most popular airline for flights from Washington DC to London Heathrow.
Aer Lingus
30 %
Icelandair
24 %
British Airways
17 %
Cheapest weekday: Thursday
Compared to other weekdays, flights are cheapest on Thursday.
Stopover flights are the cheapest connection
Compared to flights with a stopover, direct flights are $129.00 more expensive on this route.
non stop flight
1 stop
2 stops
07h 20min
18h 45min
21h 40min
$ 562
$ 433
$ 599
Favourite connection: via Dublin
When booking flights from Washington DC to London Heathrow 33 % of travelers prefer to fly via Dublin.
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 %
Important flight information
Flight information: Washington DC - London Heathrow
| Roundtrip from | $ 490,52 |
|---|---|
| Flight duration | min. 07:00 / max. 07:25 |
| Return flight duration | min. 08:20/ max. 08:45 |
| Distance | 5908 km |
| Flights per week | 52 |
| Departure airport | Airport Washington DC - Dulles International Airport, DC (IAD) |
| Arrival airport | Airport London Heathrow (LHR) |
| Destination country | Flights to United Kingdom |
Alternative routes to United Kingdom
- Flight Washington DC - Manchester from $ 495
Alternative flights to London Heathrow
- Flight Los Angeles - London Heathrow from $ 533
- Flight Boston - London Heathrow from $ 456
- Flight Detroit - London Heathrow from $ 540
- Flight Chicago O'Hare - London Heathrow from $ 509
- Flight Seattle-Tacoma - London Heathrow from $ 502
- Flight Baltimore - London Heathrow from $ 488
- Flight Denver - London Heathrow from $ 534
- Flight Newark - London Heathrow from $ 439
- Flight Philadelphia - London Heathrow from $ 607
Flight destinations with a similar price
- Flight London Heathrow - Colombo from $ 686
- Flight London Heathrow - Abu Dhabi from $ 378
- Flight London Heathrow - Toronto from $ 412
- Flight London Heathrow - Cologne from $ 120
- Flight London Heathrow - Dusseldorf from $ 104
- Flight London Heathrow - Frankfurt from $ 139
- Flight London Heathrow - Barcelona from $ 126
- Flight London Heathrow - Ahmedabad from $ 501
- Flight London Heathrow - Amritsar from $ 635
- Flight London Heathrow - Erbil from $ 484
Flight destinations with a similar price
- Flight Washington DC - Honolulu from $ 514
- Flight Washington DC - Berlin from $ 467
- Flight Washington DC - Manchester from $ 495
- Flight Washington DC - Santa Cruz from $ 540
- Flight Washington DC - Brussels from $ 484
- Flight Washington DC - Fayetteville from $ 444
- Flight Washington DC - St. Thomas from $ 526
- Flight Washington DC - Copenhagen from $ 482
- Flight Washington DC - Madrid from $ 482