¥56,330 Cheap Flights from Washington (IAD) to London (LHR)

Popular airlines from Washington Dulles Intl. Airport (IAD) to Heathrow Airport (LHR)

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Cheap Flights from Washington to London (IAD-LHR)

Prices were available within the past 7 days and start at ¥56,330 for one-way flights and ¥76,980 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Icelandair
Icelandair
Icelandair
Icelandair
Scandinavian Airlines
United
Delta
United
Air Canada

Find the cheapest month to fly from Washington (IAD) to London (LHR)

October is typically the cheapest month to fly

From ¥65,980 - ¥126,432 per traveler.

Frequently asked questions

How much is a flight from Dulles Intl. Airport to LHR?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip flight from IAD to London Heathrow was ¥76,980. Great fares don't last long, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Dulles Intl. Airport to LHR?
We get that your situation can change unexpectedly, so we've made it as hassle-free as possible for you to cancel your trip online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from Washington Dulles Intl. Airport (IAD) to Heathrow Airport (LHR) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for IAD to London Heathrow flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from IAD to Heathrow Airport (LHR)?
The average flight between Dulles Intl. Airport and Heathrow Airport (LHR) is 7 hours and 23 minutes. If you're traveling with kids, it's always a good idea to pack some snacks or fruit in your hand luggage.
How far is the flight from IAD to Heathrow Airport?
Chantilly to Hounslow is around 5,900 kilometers, so get ready to spend a while in the air. Don't forget to pack all the essentials, from your hoodie to your headphones. Toss in some snacks to munch on throughout your journey too.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to London Heathrow?
With 91 monthly flights operating from IAD to Heathrow Airport (LHR), United Airlines (UA) is a terrific choice. You could also check out the fares available with British Airways (BA). This carrier operates 60 monthly flights between Chantilly and Hounslow.
Are Washington Dulles Intl. Airport (IAD) to Heathrow Airport flight tickets cheaper when they're purchased at the last minute?
Flight tickets from Dulles Intl. Airport to London Heathrow are available up to a year prior to departure on Expedia. And although you may occasionally score fantastic last-minute deals, it's never a sure thing. Also, booking your flights ahead of time means you'll have more options — and you can avoid ending up with the dreaded middle seat! We're always updating our fares to bring you the best bargains, so check back often for all the latest specials.

Travel information

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Heathrow
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines, United
Roundtrip price
¥76,980
Distance
5866 km
Average flight time
12 hours 21 mins

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