| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Washington DC London Heathrow | Outbound 08/20/26 1 Stopover (KEF) FI0644, FI0450 10h 25min | Return 08/25/26 1 Stopover (KEF) FI0455, FI0645 26h 55min |  Icelandair |  | $734 | ||
| Best option Washington DC London Heathrow | Outbound 08/19/26 direct OS7806 07h 25min | Return 08/28/26 direct OS7805 08h 15min |  Austrian Airlines |  | ? | $1,100 | |
| Washington DC London Heathrow | Outbound 08/20/26 1 Stopover (KEF) FI0644, FI0450 10h 25min | Return 08/25/26 1 Stopover (KEF) FI0455, FI0645 26h 55min | Icelandair |  | $737 | ||
| Washington DC London Heathrow | Outbound 08/20/26 1 Stopover (KEF) FI0644, FI0450 10h 25min | Return 08/25/26 1 Stopover (KEF) FI0455, FI0645 26h 55min | Icelandair |  | ? | $745 | |
| Washington DC London Heathrow | Outbound 08/20/26 1 Stopover (KEF) FI0644, FI0450 10h 25min | Return 08/25/26 1 Stopover (KEF) FI0455, FI0645 26h 55min | Icelandair |  | $764 | ||
| Washington DC London Heathrow | Outbound 08/20/26 1 Stopover (KEF) FI0644, FI0450 10h 25min | Return 08/25/26 1 Stopover (KEF) FI0455, FI0645 26h 55min | Icelandair |  | $769 | ||
| Washington DC London Heathrow | Outbound 08/20/26 1 Stopover (KEF) FI0644, FI0450 10h 25min | Return 08/25/26 1 Stopover (KEF) FI0455, FI0645 26h 55min | Icelandair |  | ? | $822 | |
| Washington DC London Heathrow | Outbound 08/20/26 1 Stopover (LIS) TP0234, TP1358 18h 30min | Return 08/25/26 1 Stopover (LIS) TP1357, TP0231 25h 25min |  TAP Air Portugal |  | $826 | ||
| Washington DC London Heathrow | Outbound 08/20/26 direct IB3631 07h 25min | Return 08/25/26 1 Stopover (MAD) IB0716, IB0361 12h 20min |  Iberia |  | ? | $934 |
Stops
- Direct flight
Airline
- Icelandair
- Austrian Airlines
- TAP Air Portugal
- Iberia
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 | 733,05 $ |
|---|---|
| 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 |
| City-Code - Arrival airport | Washington-DC - London Heathrow |
| Departure airport - Destination country | Washington DC - Dulles International Airport, DC - United Kingdom |
| Departure airport - City-Code | Washington DC - Dulles International Airport, DC - London |
Alternative flights to London Heathrow
- Flight Los Angeles - London Heathrow from 806 $
- Flight Kansas City - London Heathrow from 887 $
- Flight Columbus - London Heathrow from 887 $
- Flight Minneapolis - London Heathrow from 1.060 $
- Flight Boston - London Heathrow from 485 $
- Flight Detroit - London Heathrow from 924 $
- Flight Baltimore - London Heathrow from 680 $
- Flight Dallas - London Heathrow from 924 $
- Flight Newark - London Heathrow from 578 $
- Flight New York - London Heathrow from 742 $
Flight destinations with a similar price
- Flight London Heathrow - Amsterdam from 199 $
- Flight London Heathrow - Stockholm from 141 $
- Flight London Heathrow - Athens from 312 $
- Flight London Heathrow - Barcelona from 164 $
- Flight London Heathrow - Delhi from 818 $
- Flight London Heathrow - Dusseldorf from 189 $
- Flight London Heathrow - Madrid from 228 $
- Flight London Heathrow - Melbourne from 1.576 $
- Flight London Heathrow - Bucharest from 279 $
- Flight London Heathrow - Sydney from 1.555 $
Flight destinations with a similar price
- Flight Washington DC - Berlin from 726 $
- Flight Washington DC - Frankfurt from 749 $
- Flight Washington DC - Zurich from 717 $
- Flight Washington DC - Munich from 746 $
- Flight Washington DC - Stuttgart from 773 $
- Flight Washington DC - Karachi from 794 $
- Flight Washington DC - Jeddah from 791 $
- Flight Washington DC - Hamburg from 727 $