|Best Price Found||$404||The best flight deal from Washington Dulles Intl Airport to London Heathrow Airport found on momondo in the last 72 hours is $404|
|Fastest flight time||7h 20m||The fastest flight from Washington Dulles Intl Airport to London Heathrow Airport takes 7h 20m|
|Direct flights||Sat||Direct flights go from Washington Dulles Intl Airport to London Heathrow Airport on Saturday. Airlines offering direct flights are: Finnair, American Airlines and British Airways.|
The cheapest time of year to fly to London Heathrow Airport from Washington Dulles Intl Airport is October. Most expensive is June
Air France, Icelandair, and KLM are the most popular carriers operating from Washington Dulles Intl Airport to London Heathrow Airport
40 days before
The cheapest time to buy a flight from Washington Dulles Intl Airport to London Heathrow Airport is approximately 40 days to departure
Don't choose KAYAK. They put you into a difficult position which is next to impossible to solve.
Good Morning - we were unable to take the flight from Dublin to Reykjavik because it was delayed and we couldn't risk missing out connection to Denver. At the beginning of our trip the flight from Reyykjavik to Dublin was canceled without telling us and we had to get a different airline on that leg as well. . . When we called the airline, they were closed and unable to help. When we called Kayak, i couldn't understand the person and they were unable to help as well! We purchased the insurance for the trip and sure hope that we can get some help from Iceland Air and from Kayak.
My luggage got delayed, trying to reach out the airline and no updates for me where my luggage is and when it will be delivered to me.
Seats were very small. The plane felt very cramped. Lots of turbulence. Horrible flight
Great flight Will go again!
Poor communication from boarding staff, airport staff not a clue. Communication on board was un decipherable and airline lost baggage.
Some of our partner airlines flying from Washington Dulles Intl to London Heathrow are adopting new policies due to the global impact of COVID-19. Some of the airlines that may be waiving their cancellation fees are United Airlines, British Airways, and Lufthansa. You can search for the full list of airlines like United Airlines that are offering this flexibility.
A flight from Washington Dulles Intl to London Heathrow will travel around 3664.4 mi. By plane, this route typically takes 9h 05m.