Flights from Washington, D.C. to London available from USD 692*
expand_more
1 Passenger
expand_morePromo code
expand_moretoday
today
Our best rates from Washington, D.C. to London
location_on
location_on
Fly in the next 3 months: flights from Washington, D.C. to London (LON)
Icelandair airfare starting at USD 692
flight_takeoff
flight_land
USD
Washington, D.C. (IAD)to
London (LON)Oct 17 2026 - Oct 21 2026
From
USD 692
Viewed 20 hrs ago
Round trip
Economy
Washington, D.C. (IAD)to
London (LON)Oct 17 2026 - Oct 31 2026
From
USD 692
Viewed 20 hrs ago
Round trip
Economy
Washington, D.C. (IAD)to
London (LHR)Nov 06 2026 - Nov 09 2026
From
USD 693
Viewed 2 days ago
Round trip
Economy
Washington, D.C. (IAD)to
London (LHR)Oct 16 2026 - Oct 30 2026
From
USD 693
Viewed 13 hrs ago
Round trip
Economy
Washington, D.C. (IAD)to
London (LGW)Oct 14 2026 - Oct 18 2026
From
USD 692
Viewed 1 day ago
Round trip
Economy
Washington, D.C. (IAD)to
London (LGW)Oct 02 2026 - Oct 06 2026
From
USD 692
Viewed 2 days ago
Round trip
Economy
*Fares displayed have been collected within the last 72 hours and may no longer be available at the time of booking. We display fares for Economy Light as standard, but it is possible to change your class of service during the booking process. You can also add baggage meals and extra legroom to your trip during booking.
Flights from Washington, D.C. (IAD) to London (LON) in the next 365 days
Book ahead and find our best prices in 2026 and beyond
flight_takeoff
flight_land
USD
From | To | Fare type | Dates | Price | |
|---|---|---|---|---|---|
| Washington, D.C. (IAD) | London (LON) | Round trip / Economy | Jan 27 2027 - Feb 05 2027 | From USD 692 Viewed 20 hrs ago | |
| Washington, D.C. (IAD) | London (LON) | Round trip / Economy | Jan 27 2027 - Feb 17 2027 | From USD 692 Viewed 20 hrs ago | |
| Washington, D.C. (IAD) | London (LON) | Round trip / Economy | Jan 27 2027 - Feb 20 2027 | From USD 692 Viewed 20 hrs ago | |
| Washington, D.C. (IAD) | London (LGW) | Round trip / Economy | Oct 14 2026 - Oct 18 2026 | From USD 692 Viewed 1 day ago | |
| Washington, D.C. (IAD) | London (LGW) | Round trip / Economy | Oct 02 2026 - Oct 06 2026 | From USD 692 Viewed 2 days ago | |
| Washington, D.C. (IAD) | London (LHR) | Round trip / Economy | Nov 06 2026 - Nov 09 2026 | From USD 693 Viewed 2 days ago | |
| Washington, D.C. (IAD) | London (LHR) | Round trip / Economy | Oct 16 2026 - Oct 30 2026 | From USD 693 Viewed 13 hrs ago | |
| Washington, D.C. (IAD) | London (LHR) | Round trip / Economy | Oct 31 2026 - Nov 09 2026 | From USD 693 Viewed 1 day ago | |
| Washington, D.C. (IAD) | London (LGW) | Round trip / Economy | Oct 03 2026 - Oct 07 2026 | From USD 771 Viewed 20 hrs ago |
*Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking. We display fares for Economy Light as standard but it is possible to change your class of service during the booking process. You can also add baggage, meals and extra legroom to your trip during booking.
Make the most of your trip
Flights from Washington, D.C. to London
Experience England’s iconic, eclectic capital with our flights from Washington, D.C. to London. With some of the shortest transatlantic flight times and cozy blankets and pillows onboard, you’ll arrive refreshed and ready to take in the city.
Plus, with Wi-Fi available across most of our fleet, you can stay connected in the clouds.
FAQs about travel from Washington, D.C. to London
Helpful information for travelers visiting London
What is the distance from Washington, D.C. to London, UK?
The distance between Washington Dulles International Airport (IAD) and London Heathrow Airport (LHR), is approximately 5,900 km or 3,700 miles.
How long is the flight from Washington, D.C. to London?
The Washington, D.C. to London flight time is usually around 7 hours 20 minutes. However, this does not account for any stopovers on your journey. Icelandair passengers traveling from Washington, D.C. to London will have a layover at Keflavík, so you can stretch your legs and get some fresh air.
How can I find cheap flights from Washington, D.C. to London?
Booking your flights during London’s off-season (January-April and September-November) can help you find cheap tickets from Washington, D.C. to London. For our latest offers, check out our latest flight deals.
Flying with Icelandair: more than just a journey
Generous baggage allowances
Learn more
Entertainment for all ages
Learn more