$485 Cheap Flights from London to Washington

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly from Heathrow to Washington Dulles Intl.

Amazing LHR to IAD Flight Deals

The cheapest flights to Washington Dulles Intl. found within the past 7 days were $510 round trip and $485 one way. Prices and availability subject to change. Additional terms may apply.

Flight Schedule for LHR to IAD

CarrierFlightDepart LHRArrive IADTue
6/28
Wed
6/29
Thu
6/30
Fri
7/1
Sat
7/2
Sun
7/3
Mon
7/4
Stops
UA12307:45 am11:00 amCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
BA21711:15 am02:15 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
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0 Stops
VS2111:35 am02:55 pmCheck Fare
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0 Stops
UA91900:15 pm03:20 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
UA92504:40 pm08:10 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
BA29305:10 pm08:25 pmCheck FareCheck FareCheck FareCheck Fare
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0 Stops
VS5511:50 am03:10 pm
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0 Stops

Frequently asked questions

 

Traveling From Heathrow
Traveling To Washington Dulles Intl.
Shortest Flight Time 8 hours 5 mins
Earliest Departure Time 7:45AM BST
Latest Departure Time 5:10PM BST
Lowest Flight Price $510

Route Info

Flight path for flights from London Heathrow Airport to Washington Dulles International Airport

Distance:
3,687.00 miles

Airlines & Aircraft Used on LHR to IAD Flight Routes

Airline Carrier
Aircraft
American Airlines
Boeing 737-700 pax
Delta Air Lines
Airbus A321-100/200
Lufthansa
Boeing 737 all pax models

Discover our best flights from London LHR to Washington IAD. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from London LHR to Washington IAD at the right price  

Airfares to Washington IAD from London LHR currently cost between $510 and $917. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from London LHR to Washington IAD 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from London LHR to Washington IAD on Travelocity starting at $485. Prices and availability subject to change. Additional terms may apply. 

 

Get to Washington IAD from London LHR quicker with direct flights. 

Get to Washington faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to IAD from LHR to take around 8 hour(s) 5 min(s).  

 

Find our cheapest airfares for flights from London LHR to Washington IAD

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to IAD from LHR. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from London LHR to Washington IAD today 

If you’re flexible about when you travel, October is usually the cheapest month to fly from London LHR to Washington IAD. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Washington IAD from London LHR 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to IAD from LHR have this option.  

 

Travel with confidence when you book flights to Washington IAD from London LHR with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.