$648 Cheap Aer Lingus flights Dublin (DUB) to Washington (IAD)

Make use of the “Price (lowest to highest)” filter on Expedia to search for cheap Aer Lingus return flights from $507 from DUB to IAD. Affordable one-way tickets from $648 are also on offer.**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.

Browse for one-way or round-trip flights to Washington in January or February. You could find a cheap fare with Aer Lingus during these off-peak times.

To get cheap flights from DUB to IAD with Aer Lingus, begin your search about one month before your intended departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Want another tip? Booking on Sunday can lead to 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.

Book a seat on one of Aer Lingus’s 7 weekly direct flights from Dublin Airport (DUB) to Washington Dulles Intl. Airport (IAD). To see what’s available, enter your origin, dates and destination and hit search. Then apply the “Nonstop” and “Airline” filters.

Depart Dublin Airport (DUB) for Washington Dulles Intl. Airport (IAD) on a direct Aer Lingus flight, and you’ll be airborne for approximately 8h 10m.

Departing DUB at 12:30PM UTC+0, the earliest Aer Lingus flight to IAD arrives at 3:40PM UTC-5. Flying early means you’re less likely to encounter cancellations or delays.* Not a morning person? The last Aer Lingus flight from DUB to IAD departs at 12:30PM UTC+0 and touches down at 3:40PM UTC-5.*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.

Jump on an Aer Lingus flight from Dublin Airport (DUB) to Washington, and you’ll probably arrive at Washington Dulles Intl. Airport (IAD). This is the airline’s primary hub in this city.

On a standard economy flight with Aer Lingus from DUB to IAD, passengers can bring 1 checked-in bag up to 50 lb with dimensions not exceeding 62 inches in total. For hand luggage, you’re allowed 1 cabin bag weighing up to 22 lb and measuring no more than 21 inches x 15 inches x 9 inches. Weight and size limits may differ depending on your airfare type and cabin class. To make sure you won’t face additional charges at the airport, double-check your Aer Lingus booking or look up the airline’s website before loading up your suitcase.

With a 4-star airline rating and a rewarding loyalty program, Aer Lingus is the leading choice for many travelers flying from DUB to IAD. Plus, if you’re an Aer Lingus AerClub and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which you can put toward future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll probably travel on an Airbus A321neo for your Aer Lingus flight from Dublin Airport (DUB) to Washington Dulles Intl. Airport (IAD). However, you may be switched to another aircraft if operational demands require it.

Depending on your ticket type, a fee generally applies if you change or cancel your flight more than 24 hours after it has been confirmed. To secure plane tickets with more flexibility, select our “Changes included” and “No cancel fee” boxes when you search for flights. For more details on canceling or modifying your reservation, go to “Trips,” select your flight and tick “Manage Booking.”