$580 Cheap British Airways flights Dublin (DUB) to Washington (IAD)

Finding cheap one-way British Airways flights from DUB to IAD from $580 on Expedia is a cinch — just filter by “Price (lowest to highest).” Or check out our affordable round-trip fares from $611 for your next exciting getaway.**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.

Search for return or one-way flights to Washington in January or February. You could find cheaper fares with British Airways during these off-season months.

To find affordable flights from DUB to IAD with British Airways, begin your search about one month before your planned departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another good tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**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.

Select our “Nonstop” filter when browsing for direct British Airways flights from DUB to IAD. It’s also a good way to compare other airlines servicing the same nonstop route.

To find the earliest departure from DUB to IAD with British Airways, filter your results by “Morning” and “Early Morning.” Booking an early flight usually means you’re less likely to experience 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.

Hop on a British Airways flight from Dublin Airport (DUB) to Washington, and you’ll probably touch down at Washington Dulles Intl. Airport (IAD). This is the airline’s main hub here.

British Airways lets passengers bring 1 checked-in bag weighing up to 50 lb with maximum dimensions of 29 inches x 15 inches x 16 inches on standard economy flights from DUB to IAD. Additionally, you can bring 2 cabin bags in the cabin. This hand luggage must not exceed 19 inches x 9 inches x 17 inches and weigh no more than 50 lb. Baggage allowances can differ based on your fare type and cabin class, so check your booking or British Airways’s website to avoid additional costs at the airport.

Offering an excellent in-flight experience and a 4-star airline rating, British Airways is the leading choice for many travelers flying from DUB to IAD. What’s more, if you’re a British Airways Executive Club and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be used on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll most likely catch an Airbus A321neo for your British Airways flight from Dublin Airport (DUB) to Washington Dulles Intl. Airport (IAD). However, you may be switched to a different aircraft if there are operational changes.

Changes are often free within 24 hours of making a booking, but your airline may charge a fee after that time. For further details about modifying your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to adjust your plans without additional costs, check the “Changes included” and “No cancel fee” filters when organizing your next getaway.