| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| London Heathrow Washington DC | Outbound 11/12/25 1 Stopover (LIS) TP1363, TP0231 14h 15min | Return - |  TAP Air Portugal |  | £505 | ||
| London Heathrow Washington DC | Outbound 25/11/25 1 Stopover (KEF) FI0451, FI0645 11h 05min | Return 02/12/25 1 Stopover (KEF) FI0644, FI0450 10h 10min |  Icelandair | | £363 | ||
| Best option London Heathrow Washington DC | Outbound 08/12/25 direct BA0293 08h 30min | Return 24/12/25 direct BA0292 07h 15min |  British Airways |  | £485 | ||
| London Heathrow Washington DC | Outbound 25/11/25 1 Stopover (KEF) FI0451, FI0645 11h 05min | Return 02/12/25 1 Stopover (KEF) FI0644, FI0450 10h 10min | Icelandair |  | £367 | ||
| London Heathrow Washington DC | Outbound 25/11/25 1 Stopover (KEF) FI0451, FI0645 11h 05min | Return 02/12/25 1 Stopover (KEF) FI0644, FI0450 10h 10min | Icelandair | | £368 | ||
| London Heathrow Washington DC | Outbound 25/11/25 1 Stopover (LIS) TP1363, TP0231 13h 35min | Return 02/12/25 1 Stopover (LIS) TP0232, TP1358 23h 05min | TAP Air Portugal |  | ? | £369 | |
| London Heathrow Washington DC | Outbound 25/11/25 1 Stopover (LIS) TP1363, TP0231 13h 35min | Return 30/11/25 1 Stopover (LIS) TP0234, TP1356 14h 00min | TAP Air Portugal |  | £387 | ||
| London Heathrow Washington DC | Outbound 25/11/25 1 Stopover (KEF) FI0451, FI0645 11h 05min | Return 02/12/25 1 Stopover (KEF) FI0644, FI0454 18h 50min | Icelandair |  | £391 | ||
| London Heathrow Washington DC | Outbound 25/11/25 1 Stopover (LIS) TP1363, TP0231 13h 35min | Return 02/12/25 1 Stopover (LIS) TP0232, TP1352 14h 10min | TAP Air Portugal |  | ? | £391 | |
| London Heathrow Washington DC | Outbound 25/11/25 1 Stopover (KEF) FI0451, FI0645 11h 05min | Return 02/12/25 1 Stopover (KEF) FI0644, FI0450 10h 10min | Icelandair |  | £393 |
Stops
- Direct flight
Airline
- Icelandair
- Lufthansa
- TAP Air Portugal
- Swiss International Air Lines
- British Airways
Tips and tricks to help you find cheap flights from London Heathrow to Washington DC
Favourite airline: Aer Lingus
The majority of passengers on the route London Heathrow – Washington DC prefer to fly with Aer Lingus.
Aer Lingus
32 %
TAP Portugal
25 %
Icelandair
18 %
Cheapest weekday: Saturday
Compared to other weekdays, flights are cheapest on Saturday.
Stopover flights are the cheapest connection
Flights with a stopover are on average £183.00 cheaper than direct flights.
non stop flight
1 stop
08h 05min
15h 25min
£ 655
£ 472
Favourite connection: via Dublin
Stopover flights on this route are especially popular via Dublin, making up 33 % of bookings.
Route
bookings
1 stopover Dublin
13h 55min, from £ 652
33 %
1 stopover Lisbon
12h 25min, from £ 540
26 %
1 stopover Reykjavik-Keflavik International
15h 25min, from £ 472
19 %
Important flight information
Flight information: London Heathrow - Washington DC
| Cheapest outbound flight from | £ 504,99 |
|---|---|
| Outbound and return from | £ 362,99 |
| Flight duration | min. 08:20 / max. 08:45 |
| Return flight duration | min. 07:00/ max. 07:25 |
| Distance | 5908 km |
| Flights per week | 52 |
| Departure airport | Airport London Heathrow (LHR) |
| Arrival airport | Airport Washington DC - Dulles International Airport, DC (IAD) |
| Destination country | Flights to United States |
Alternative routes to United States
- Flight London Heathrow - Miami from £ 330
- Flight London Heathrow - New York from £ 264
- Flight London Heathrow - Los Angeles from £ 249
- Flight London Heathrow - Baltimore from £ 492
- Flight London Heathrow - Dallas from £ 638
- Flight London Heathrow - Detroit from £ 536
- Flight London Heathrow - Newark from £ 303
- Flight London Heathrow - Seattle-Tacoma from £ 477
- Flight London Heathrow - San Francisco from £ 355
- Flight London Heathrow - Tampa from £ 395
Alternative flights to Washington DC
- Flight Manchester - Washington DC from £ 539
- Flight London Gatwick - Washington DC from £ 357
Popular destinations for onward travel
- Flight Washington DC - Monrovia from £ 934
Flight destinations with a similar price
- Flight London Heathrow - Miami from £ 330
- Flight London Heathrow - Bangalore from £ 338
- Flight London Heathrow - Nairobi from £ 376
- Flight London Heathrow - Bangkok from £ 339
- Flight London Heathrow - Melbourne from £ 374
- Flight London Heathrow - San Francisco from £ 355
- Flight London Heathrow - Tampa from £ 395
- Flight London Heathrow - New York from £ 353
- Flight London Heathrow - Toronto City from £ 362
- Flight London Heathrow - Kinshasa from £ 380