Fastest flight time
Airports in Washington, D.C.
The cheapest time of year to fly to Washington, D.C. from London Heathrow Airport is February. The most expensive is July.
60 days before
The cheapest time to buy a flight from London Heathrow Airport to Washington, D.C. is approximately 60 days to departure
When travelling from London to Washington, D.C., the most popular airport to fly into is Washington, D.C. Dulles Intl Airport. The majority of travellers flying into Washington, D.C. Dulles Intl Airport from London are departing from London Heathrow Airport. The cheapest route from London to Washington, D.C. is LHR — IAD with an average price of €2,333 RT during the month of August.
Due to the global impact of COVID-19, some of our airline partners operating flights from London Heathrow to Washington, D.C., such as Aer Lingus may have flexible change policies in place. Use our site to search for all of the airlines offering this flexibility to you.
Washington, D.C. is 5873.1 km away from London Heathrow. A reasonable flight in good conditions will take 8h 20m.
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Washington, D.C.. momondo saves you time and could save you money on your trip.
Yes. momondo allows you to filter the results for London to Washington, D.C. flights to just show those with flexible booking policies.
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from London.
If you are not ready to book a flight from London to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.