$542 Cheap Aer Lingus flights Washington (IAD) to Dublin (DUB)

Use the “Price (lowest to highest)” filter on Expedia to find cheap Aer Lingus return flights from $415 from IAD to DUB. Affordable one-way tickets from $542 are available as well.**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.

Aer Lingus flights to Dublin are generally cheaper in the low-season months of January and February. Whether you’re after a one-way or a return ticket, you could land a better deal then.

Scoring the best Aer Lingus deals from IAD to DUB often comes down to booking at the right moment. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. As an added bonus, you can pocket 17% on average by buying your fare on a Sunday rather than a Friday, which is often the most expensive day to book.* It’s a good idea to start checking out 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.

Aer Lingus operates direct flights from Washington Dulles Intl. Airport (IAD) to Dublin Airport (DUB), with 7 weekly departures. Simply apply the “Nonstop” and “Airline” filters during your search on Expedia to see all direct Aer Lingus flights to DUB.

It takes approximately 6h 45m to travel nonstop from Washington Dulles Intl. Airport (IAD) to Dublin Airport (DUB) with Aer Lingus.

The earliest flight from IAD to DUB with Aer Lingus leaves at 5:10PM UTC-5. You’ll land at 4:55AM UTC+0. The final Aer Lingus flight of the day takes off at 5:10PM UTC-5 and arrives at 4:55AM UTC+0. With around 20% fewer cancellations for departures before noon, jetting out early is typically the best choice.**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.

Dublin Airport (DUB) is the main Dublin gateway for Aer Lingus flights from Washington Dulles Intl. Airport (IAD).

For checked luggage, passengers can take 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 62 inches. You can also travel with 1 cabin bag on board when flying standard economy from IAD to DUB with Aer Lingus. This carry-on must weigh less than 22 lb and be no bigger than 21 inches x 15 inches x 9 inches. Going over these limits can mean extra charges, so check Aer Lingus’s baggage allowance policies before you start packing.

Aer Lingus makes traveling from IAD to DUB more comfortable with a 4-star airline rating and a rewarding loyalty program. You could even start earning points with Aer Lingus AerClub. Make sure you sign up to Expedia’s free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Hop on an Aer Lingus flight from Washington Dulles Intl. Airport (IAD) to Dublin Airport (DUB), and you’ll probably be on an Airbus A321neo. Keep in mind though, that the aircraft type can vary depending on operational demands.

In most cases, you can change or cancel your flight, although there may be additional charges if you booked more than 24 hours ago. Want to keep your options open? Make use of Expedia’s “Changes included” or “No cancel fee” filter to find flights that won’t penalize you if you have to alter your plans. To modify your itinerary, head to “Trips,” select your flight and click on “Manage Booking” for more details.