IAD - DUB

£289 Find Cheap Flights from Washington, D.C. to Dublin

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Dublin departing on 27/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Dublin

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Dublin, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Dublin, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Washington, D.C. to Dublin (IAD-DUB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Washington, D.C. to Dublin that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Washington, D.C. to Dublin

Tue, 4 Nov - Fri, 14 Nov
United Airlines Logo
22:20 - 10:20IAD-DUB
7h 00mdirect
United Airlines Logo
09:00 - 15:51DUB-IAD
11h 51m1 stop
£336United Airlines
Find Deal
Tue, 28 Oct - Tue, 4 Nov
 Logo
23:20 - 10:20IAD-DUB
7h 00mdirect
 Logo
05:00 - 15:50DUB-IAD
15h 50m1 stop
Tue, 28 Oct - Tue, 4 Nov
United Airlines Logo
06:30 - 06:10IAD-DUB
19h 40m2 stops
United Airlines Logo
09:30 - 16:25DUB-IAD
11h 55m1 stop
£338United Airlines
Find Deal
Wed, 19 Nov - Wed, 26 Nov
United Airlines Logo
17:33 - 09:55IAD-DUB
11h 22m1 stop
United Airlines Logo
09:00 - 21:22DUB-IAD
17h 22m2 stops
£338United Airlines
Find Deal
Tue, 4 Nov - Wed, 12 Nov
United Airlines Logo
22:20 - 10:20IAD-DUB
7h 00mdirect
United Airlines Logo
12:05 - 15:20DUB-IAD
8h 15mdirect
£339United Airlines
Find Deal
Tue, 4 Nov - Fri, 14 Nov
United Airlines Logo
09:00 - 07:10IAD-DUB
17h 10m1 stop
United Airlines Logo
09:00 - 21:22DUB-IAD
17h 22m2 stops
£340United Airlines
Find Deal
Mon, 1 Dec - Tue, 9 Dec
 Logo
17:10 - 07:10IAD-DUB
33h 00m2 stops
 Logo
05:00 - 15:50DUB-IAD
15h 50m1 stop
Wed, 19 Nov - Thu, 27 Nov
Delta Logo
18:50 - 15:45IAD-DUB
15h 55m1 stop
Delta Logo
10:45 - 19:08DUB-IAD
13h 23m1 stop
£344Delta
Find Deal
Mon, 27 Oct - Wed, 5 Nov
Delta Logo
19:59 - 08:45IAD-DUB
8h 46m1 stop
Delta Logo
06:00 - 19:18DUB-IAD
18h 18m2 stops
£347Delta
Find Deal
Mon, 10 Nov - Sat, 15 Nov
Scandinavian Airlines Logo
20:30 - 18:20IAD-DUB
16h 50m1 stop
Scandinavian Airlines Logo
10:10 - 18:50DUB-IAD
13h 40m1 stop
£378Scandinavian Airlines
Find Deal

Everything you should know

Our travellers' advice
AI-generated summary based on content written by travel experts
Dulles' AeroTrain eases terminal transfers for flights.
Use Dublin's 24-hour buses for easy city access.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
United Airlines
Cheapest • from £336 (return)
Aer Lingus
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 21% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 18% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
£336
Overall average: £451
United Airlines
Tue 4/11Fri 14/11
IAD - DUB • Direct
Cheapest direct flights
£339
Typical prices: £381-607
United Airlines
Tue 4/11Tue 11/11
IAD - DUB • Direct
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Dublin!
Expert advice

Expert advice for your flight from Washington, D.C. to Dublin

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

United Polaris offers lie-flat seats with aisle access in a 1-2-1 layout for privacy.


United Polaris Lounge provides a luxurious experience with restaurants and less crowded spaces.

Aer Lingus

Aer Lingus offers 22-inch wide Business Class seats with a 6'5" lay-flat bed for comfort.


Aer Lingus provides free Wi-Fi for Business Class passengers on long-haul flights.

Airports
IAD

Dulles offers the AeroTrain for quick access between terminals, ideal for evening departures to Dublin. Plan your route using the airport map.

Read more about IADby Stefanie Waldek
DUB

For a smooth arrival in Dublin, use the 24-hour buses to reach the city centre. Double-decker buses offer great views from the top deck.

Read more about DUBby Ramsey Qubein
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or out at sea, likely en route to Antarctica or the Arctic.

Read more
Marisa Garcia

Marisa Garcia

Expert on Aer Lingus

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialising in airline interiors and regulations. 10 years ago, she pivoted to journalism. She shares her insights in leading aviation, travel and business publications and on her site, FlightChic.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on DUB

Ramsey Qubein

Ramsey Qubein

An avid traveller and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg, among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Dublin flights

Get data-powered insights and trends into flights from Washington, D.C. to Dublin to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Washington, D.C. to Dublin?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Dublin clicked on KAYAK for each day over the last 12 months.

For Washington, D.C. to Dublin, Sunday is the cheapest day to fly on average and Friday is the most expensive. Flying from Dublin back to Washington, D.C., the best deals are generally found on Tuesday, with Sunday being the most expensive.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Dublin?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Dublin, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Dublin is February, where tickets cost £427 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is £670 and £613 respectively.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Dublin?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Dublin, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Dublin, you should book around 3 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know - Cheap tickets from Washington, D.C. to Dublin

Low seasonFebruary
Cheapest flight£289
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (8% more expensive on average)
Flight from Washington, D.C. to Dublin

When to book flights from Washington, D.C. to Dublin

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Dublin based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington, D.C. to Dublin flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Dublin?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Dublin was £393 for a one-way ticket and £456 for a return.

  • Which airlines offer Wi-Fi service onboard planes from Washington, D.C. to Dublin?

    Air France, American Airlines, and Lufthansa offer inflight Wi-Fi service on the Washington, D.C. to Dublin flight route.

  • Which aircraft models fly most regularly from Washington, D.C. to Dublin?

    The Boeing 757-200 is the aircraft model that flies most regularly on the Washington, D.C. to Dublin flight route.

  • Which airline alliances offer flights from Washington, D.C. to Dublin?

    oneworld, and Star Alliance are the airline alliances operating flights between Washington, D.C. and Dublin, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Washington, D.C. to Dublin?

    There are direct flights from Washington, D.C. to Dublin on a daily basis.

  • How does KAYAK find such low prices on flights from Washington, D.C. to Dublin?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Dublin.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Dublin?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dublin from Washington, D.C. is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to Dublin?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Dublin with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Dublin?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Dublin from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Dulles Intl Airport to Dublin

  • Looking for a cheap flight from Dublin to Washington, D.C.? 25% of our users found flights on this route for £293 or less one-way and £448 or less round-trip.

Prefer to fly direct from Washington, D.C. to Dublin?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. Dulles Intl to Dublin.
Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Dublin Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl to Dublin

Monday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Tuesday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Wednesday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Thursday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Friday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Saturday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Sunday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

See more direct flights

Direct returns

Dublin to Washington, D.C. Dulles Intl

Monday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Tuesday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Wednesday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Thursday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Friday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Saturday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

Sunday

Aer Lingus, United Airlines

Aer Lingus, United Airlines

See more direct flights

Reviews of the top airline flying from Washington, D.C. to Dublin

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Dublin. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Washington, D.C. to Dublin? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
Aer LingusOverall score based on 1270 reviews
6.9Entertainment
8.0Crew
7.1Comfort
6.5Food
7.3Boarding
Airline reviews

Too hot. Asked for an extra glass of water and was ignored. Asked to sit in empty seats that were open because it was so hot and crowded and was denied and the seats were empty the entire flight

6.0 GoodAnonymous, Sept 2025IND - DUB
Read more Aer Lingus reviews

Too hot. Asked for an extra glass of water and was ignored. Asked to sit in empty seats that were open because it was so hot and crowded and was denied and the seats were empty the entire flight

Terrible leg room - I’m 5’3” and my knees were touching the seat in front of me. When the person sitting in front of me leaned back, there was about 15 inches of space between my head and the TV screen which made it awkward to view movies. Last year they had decent food, but this year the only tasty item on the trip was dessert.

The flight was delayed leaving Philadelphia due to “catering” and consequently arrived in Dublin some 75 minutes later than scheduled. Consequently this caused me to miss my connecting flight to Glasgow and I had to spend the night in Dublin.

It was truly a horrible flight. We were delayed almost 2 hours. The seats were so tiny, my legs were hurting the entire flight. When i finally made it to Ireland i missed my connecting flight because we left Newark late. I will most likely never fly Aer Lingus again

Coming from the EU to the USA, Aer Lingus is a very good choice. You clear U.S. border control while still at the departure airport, so when you land in the States, you don’t need to go through the entry process again — very efficient and fast. In terms of comfort, Aer Lingus is better than the usual EU carriers like KLM, Lufthansa, or Air France, and also better than United. There’s more legroom, and the crew is helpful and kind. The food is average but slightly better than most airlines. Overall, the crew is definitely better than on American Airlines, though not quite at the level of Virgin.

Best travel day I've had in a long time. Everything went perfectly, no delays. 10 out of 10

Seat is business could have been a lot cleaner, but space was nice and seat was comfortable

Terrible. The test of an airline is how they deal with problems. There is very little to differentiate between airlines. Aer Lingus failed absolutely. They lost one of my bags even though we had more than a 2 hour connection in Dublin. Trying to get it back has been awful. In checking on line I can see that the bag is in Edinburgh and it was supposed to be delivered today. It wasn't. The number we have in the UK doesn't answer. I had to pay for an international call to speak to somebody. All the woman at the call centre could say was be patient wait. I can tell you when it will be delivered nor can I tell you who the courier is.

A little late, but an overall pleasant flight. Staff pleasent hand helpful, a great start to our holiday.

Poor check-in experience in Manchester. Delayed boarding and check-in agent never explained how to transfer in NYC to JetBlue.

Everything you need to know for your flight from Washington, D.C. to Dublin

Information on your arrival and departure airports

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