Cheap Delta flights London (LGW) to Washington (IAD)

You’ll discover budget-friendly return Delta Air Lines flights from $895 from LGW to IAD by sorting your results from “Price (lowest to highest)” on Expedia. Or look for bargains for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the most affordable months to jet off to Washington with Delta Air Lines. You could also find great prices on return and one-way fares in February.

Snagging the best Delta Air Lines deals from LGW to IAD is typically all about timing. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. What’s more, you can pocket 17% on average by buying your fare on a Sunday rather than a Friday, which is usually the most expensive day to book.* It’s a good idea to start searching for flights about one month before you want to travel.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Enter your dates, click search and use the “Nonstop” filter on Expedia to browse any direct flights from LGW to IAD with Delta Air Lines or other carriers.

Browse Delta Air Lines’s earliest flights from LGW to IAD by using the “Early Morning” and “Morning” filters. Not only will you arrive at your destination sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Washington Dulles Intl. Airport (IAD) is the primary Washington gateway for Delta Air Lines flights from Gatwick Airport (LGW).

Offering a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is a popular option for many travelers heading from LGW to IAD. What’s more, if you’re a Delta SkyMiles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be put toward future getaways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are generally free within 24 hours of making a booking, but your airline may charge a fee after that time. For more information about modifying your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to change your plans without additional costs, apply the “Changes included” or “No cancel fee” filter when planning your next getaway.