Popular airlines from Washington to London
British AirwaysBritish Airways
IcelandairIcelandair
Virgin AtlanticVirgin Atlantic
TAP PortugalTAP Portugal
IberiaIberia
Aer LingusAer Lingus
FinnairFinnair
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Today's featured flight deals from Washington to London
- Washington (IAD) to London (LHR).United, nonstop.Departing on Sun, Nov 23 at 10:15pm from Washington, arriving on Mon, Nov 24 at 10:50am in London.Returning on Thu, Nov 27 at 6:50am from London, arriving at 2:35pm in Washington.Select United flight departing on Sun, Nov 23 at 10:15pm from Washington, returning on Thu, Nov 27 at 6:50am from London priced at $74225% less than typical$742
- Washington (IAD) to London (LHR).Virgin Atlantic, nonstop.Departing on Sun, Dec 7 at 10:20pm from Washington, arriving on Mon, Dec 8 at 10:50am in London.Returning on Wed, Dec 17 at 8:40am from London, arriving at 4:05pm in Washington.Select Virgin Atlantic flight departing on Sun, Dec 7 at 10:20pm from Washington, returning on Wed, Dec 17 at 8:40am from London priced at $57630% less than typical$576
- Washington (IAD) to London (LHR).Virgin Atlantic, nonstop.Departing on Fri, Nov 7 at 10:20pm from Washington, arriving on Sat, Nov 8 at 10:50am in London.Returning on Tue, Nov 11 at 10:00am from London, arriving at 4:05pm in Washington.Select Virgin Atlantic flight departing on Fri, Nov 7 at 10:20pm from Washington, returning on Tue, Nov 11 at 10:00am from London priced at $62630% less than typical$626
- Washington (IAD) to London (LHR).British Airways, nonstop.Departing on Sat, Nov 15 at 9:45pm from Washington, arriving on Sun, Nov 16 at 10:00am in London.Returning on Sat, Nov 22 at 2:45pm from London, arriving at 11:59pm in Washington.Select British Airways flight departing on Sat, Nov 15 at 9:45pm from Washington, returning on Sat, Nov 22 at 2:45pm from London priced at $69325% less than typical$693
- Washington (IAD) to London (LHR).British Airways, nonstop.Departing on Wed, Dec 10 at 9:45pm from Washington, arriving on Thu, Dec 11 at 10:00am in London.Returning on Thu, Dec 18 at 12:10pm from London, arriving at 3:35pm in Washington.Select British Airways flight departing on Wed, Dec 10 at 9:45pm from Washington, returning on Thu, Dec 18 at 12:10pm from London priced at $58225% less than typical$582
- Washington (IAD) to London (LHR).Virgin Atlantic, nonstop.Departing on Sat, Nov 15 at 10:20pm from Washington, arriving on Sun, Nov 16 at 10:50am in London.Returning on Sat, Nov 22 at 4:50pm from London, arriving at 8:30pm in Washington.Select Virgin Atlantic flight departing on Sat, Nov 15 at 10:20pm from Washington, returning on Sat, Nov 22 at 4:50pm from London priced at $68220% less than typical$682
- Baltimore (BWI) to London (LHR).British Airways, nonstop.Departing on Fri, Dec 12 at 8:35pm from Baltimore, arriving on Sat, Dec 13 at 8:40am in London.Returning on Sat, Dec 20 at 3:25pm from London, arriving at 6:45pm in Baltimore.Select British Airways flight departing on Fri, Dec 12 at 8:35pm from Baltimore, returning on Sat, Dec 20 at 3:25pm from London priced at $73220% less than typical$732
- Washington (IAD) to London (LHR).British Airways, nonstop.Departing on Wed, Nov 19 at 9:45pm from Washington, arriving on Thu, Nov 20 at 10:00am in London.Returning on Tue, Nov 25 at 4:25pm from London, arriving at 7:55pm in Washington.Select British Airways flight departing on Wed, Nov 19 at 9:45pm from Washington, returning on Tue, Nov 25 at 4:25pm from London priced at $58220% less than typical$582
Cheap Flights from Washington to London (WAS-LON)
Prices were available within the past 7 days and start at $279 for one-way flights and $401 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Find the cheapest month to fly from Washington (WAS) to London (LON)
February is typically the cheapest month to fly
Alternative airports near London
Prices were available within the past 7 days. Prices and availability are subject to change.
Travel information
Origin airport | Baltimore Washington Intl. Thurgood Marshall |
|---|---|
Destination airport | Heathrow |
Airlines serving | Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic |
Roundtrip price | $401 |
Distance | 3624 mi |
Book with confidence
Washington to London Flights
The cheapest times to fly from Washington to London
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to London are during the month of March. You can find some of the cheapest flights from Washington to London with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Washington to London
Sunday is one of the best days to book for cheap flights from Washington to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Washington to London
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $279 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.
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