Flights from Washington (IAD) to London (LHR)
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Cheapest Flights from Washington (IAD) to London (LHR)
Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.
Best Day to Book Flight from Washington (IAD) to London (LHR)
Washington to London Flight Information
Find the Cheapest Flights from Washington (IAD) to London (LHR)
Work hard, travel harder! Wotif brings you the cheapest Washington to London flights, making it possible to have a five star holiday without that five star price tag. Browse and compare our top IAD to LHR routes and airport options. So, go ahead and treat yourself, your sweetheart, or the kids to an unforgettable holiday this year.
Chantilly to London Information
Traveling From | Washington Dulles Intl. |
|---|---|
Origin Airport | Chantilly |
Origin Airport IATA Code | IAD |
Traveling To | Heathrow |
Destination Airport | London |
Destination Airport IATA Code | LHR |
Number of Airlines Serving | 15 |
Average Flight Time | 17 hours 20 mins |
Direct Flight Time | 17 hours 20 mins |
Flight Price | AU$951 |
Washington to London Flight Deals from AU$951
Considering a quick trip to London, but not sure which is the best route for you? Well, you’re in luck! Wotif has done the hard work, so all you need to do is check out these flights from IAD to LHR. With heaps of cheap fares from Washington, we guarantee you’ll be arriving to your holiday destination in style without emptying your bank account in the process.
It’s easy to book flights to London from Washington
For a huge choice of flights, simply enter your travel dates and hit search and we’ll hunt out fantastic deals on one-way, return and multi-city airfares to London from Washington from 10 different airlines. If you click the ‘direct flights’ box, you see flights that’ll get you to London in just 17 hour(s) and 20 mins, too.
Snap up great deals on flights to London from Washington
Choose from 28 flights a day on average, with prices starting at AU$951 and rising to AU$2,943 depending on the cabin class, travel dates, and airline carrier. And if you’re up for a last-minute getaway, you can get great deals on flights from Washington to London today!
Find cheap airfares to London from Washington
Here are our insider tips for bagging a flight bargain:
- Look for midweek flights and late night, early morning arrival and departure times
- Check out other airports near Washington and London
- Avoid peak season (prices tend to be lower in September)
- Be flexible with your travel dates and you can usually get cheaper options
Reasons to book your flights to London from Washington with Wotif
Wotif is a super-easy way to find the best flight for you to London. Get more bang for your buck on flight and hotel or car rental combos and download the free Wotif app to tap into exclusive deals. Book now with Wotif and have a great flight!
Great places to stay after flight from Washington to London
Hilton Garden Inn London Heathrow Terminal 2 and 3
Reviewed on 17 Aug. 2025
Hyatt Place London Heathrow Airport
Reviewed on 17 Aug. 2025
Sofitel London Heathrow
Reviewed on 18 Aug. 2025
Discover top hotels, vacation package, cheap car rental deals and more with Wotif!
Flights From IAD
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^Savings based on all package bookings made with Flight + Hotel on Wotif.com from , as compared to the price of the same components booked separately. Savings will vary based on origin/destination, length of trip, stay dates and selected travel supplier(s). Savings not available on all packages.