WAS - DUB

€185 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 20/10. 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 (WAS-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

Sun, 21 Sep - Thu, 25 Sep
PLAY Logo
18:50 - 10:10BWI-DUB
10h 20m1 stop
PLAY Logo
11:35 - 17:40DUB-BWI
11h 05m1 stop
€267PLAY
Find Deal
Sun, 21 Sep - Sat, 27 Sep
PLAY Logo
18:50 - 10:10BWI-DUB
10h 20m1 stop
PLAY Logo
11:35 - 17:40DUB-BWI
11h 05m1 stop
€269PLAY
Find Deal
Sun, 21 Sep - Sat, 27 Sep
PLAY Logo
18:50 - 10:10BWI-DUB
10h 20m1 stop
PLAY Logo
11:35 - 17:40DUB-BWI
11h 05m1 stop
€279PLAY
Find Deal
Thu, 22 Jan - Tue, 27 Jan
Icelandair Logo
19:40 - 10:15BWI-DUB
9h 35m1 stop
Icelandair Logo
11:30 - 18:40DUB-BWI
12h 10m1 stop
€302Icelandair
Find Deal
Thu, 22 Jan - Sun, 25 Jan
Icelandair Logo
19:40 - 10:15BWI-DUB
9h 35m1 stop
Icelandair Logo
11:30 - 18:40DUB-BWI
12h 10m1 stop
€304Icelandair
Find Deal
Mon, 27 Oct - Wed, 5 Nov
KLM Logo
16:44 - 07:45BWI-DUB
11h 01m1 stop
KLM Logo
09:45 - 17:17DUB-BWI
12h 32m1 stop
€379KLM
Find Deal
Sun, 2 Nov - Tue, 11 Nov
British Airways Logo
20:35 - 14:20BWI-DUB
12h 45m1 stop
British Airways Logo
10:55 - 18:45DUB-BWI
12h 50m1 stop
€380British Airways
Find Deal
Tue, 4 Nov - Thu, 20 Nov
British Airways Logo
20:35 - 12:10BWI-DUB
10h 35m1 stop
British Airways Logo
08:50 - 18:45DUB-BWI
14h 55m1 stop
€382British Airways
Find Deal
Mon, 27 Oct - Wed, 12 Nov
Aer Lingus Logo
18:05 - 04:55IAD-DUB
6h 50mdirect
Aer Lingus Logo
16:20 - 19:30DUB-IAD
8h 10mdirect
€398Aer Lingus
Find Deal
Tue, 28 Oct - Wed, 5 Nov
Aer Lingus Logo
22:00 - 08:50IAD-DUB
6h 50mdirect
Aer Lingus Logo
16:20 - 19:30DUB-IAD
8h 10mdirect
€399Aer Lingus
Find Deal

Everything you should know

Top airlines
PLAY
Cheapest • from €267 (return)
Aer Lingus
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
IAD-DUB
Cheapest
IAD-DUB
Most popular
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 20% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
€267
Typical prices: €345-651
PLAY
Sun 21/9Thu 25/9
BWI - DUB • 1 stop
Cheapest direct flights
€394
Typical prices: €441-702
United Airlines
Tue 4/11Tue 11/11
IAD - DUB • Direct
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Dublin!
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.

How much is a return flight from Washington, D.C. to Dublin?

What is the cheapest Washington, D.C. to Dublin flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Washington, D.C. to Dublin costs €552 on the route between Washington, D.C. Dulles Intl Airport (IAD) and Dublin (DUB). It is also the most popular route.

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. to Dublin clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Washington, D.C. to Dublin, look for departures on Tuesdays and avoid leaving on a Wednesday, as it's usually the priciest day. When flying back from Dublin, Thursday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Washington, D.C. 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. 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. to Dublin is January, where tickets cost €451 (return) on average. On the other hand, the most expensive months are June and April, where the average cost of round-trip tickets is €717 and €692 respectively.

How far in advance should I book a flight from Washington, D.C. 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. 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. to Dublin, you should book around 3 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight€185
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly and prices are also 6% lower on average.
Flight from Baltimore 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 flights from Washington, D.C. to Dublin

  • What different kinds of flights are available between Washington and Dublin?

    There are several daily direct flights between Washington, D.C and Dublin, with these usually being serviced by United Airlines. You will also find many flights between the two destinations that require a layover, such as in the cities of Montreal or Toronto. Airlines that service these connecting flights include Air Canada and United Airlines.

  • How can I go from downtown Washington, D.C. to Dulles International Airport?

    If you choose to drive from downtown Washington, D.C. to Dulles International Airport, you should expect the trip to take around 30 to 35min on average. There is always public transport, which includes the Silver bus and bus lines 42 and 43. These buses will bring you to the airport in just over 1h.

  • What is the easiest way to go from Dublin Airport to the city center?

    When driving from Dublin Airport to the city center, it will normally take around 20min in total, if there is no additional traffic. Public transportation can also be used, such as the Dublin Express bus line, which will bring you there in around 25min.

  • Is there a car rental center located directly at Dublin Airport?

    There are several major car rental companies that have offices in both Terminals 1 and 2 of Dublin Airport. The rental companies that you can find here include Alamo, Budget, and SIXT. Each of these rental companies also keeps their fleets directly at the airport, making it easy for travelers to grab their vehicle once they have landed at DUB.

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Dublin was €217 for a one-way ticket and €313 for a return.

  • Which airports will I be using when flying from Washington, D.C. to Dublin?

    When flying out of Washington, D.C. you will be using one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be landing at Dublin.

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

    American Airlines, and Air France 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 Airbus A321neo 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 travelers 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. to Dublin

  • When flying from the Washington, D.C region, there are three different airports that your flight may depart from. There is Dulles International Airport (IAD), which is located around 26 miles from the city center, as well as Ronald Reagan Washington National Airport (DCA), which is approximately 5 miles from the city center. There is also Baltimore/Washington International Thurgood Marshall Airport (BWI) that is located around 9 miles from the city center.
  • Once you have landed at Dublin Airport (DUB), you may want to rent some items for your little one from The Stork Exchange in the Arrivals Terminal. Here, you can rent things like strollers, cradles, or even car seats.
  • Quickly pass the time while waiting for your flight to board at Ronald Reagan Washington National Airport by heading to one of the airport lounges that are available. The American Airlines Admirals Club is in Terminals B and C, while the United Club can be found in Terminal B.
  • If you have an early flight out of Dulles International Airport, you may want to sleep directly at the airport. You can rent a soundproof room from the Sleepbox Lounge, at either an hourly or a nightly rate, and it comes with a memory foam XL twin-bed, charging ports, a desk, and Bluetooth speakers.
  • Get in a bit of exercise before being cooped up on a plane by heading to Roam Fitness in Concourse D of Baltimore/Washington International Thurgood Marshall Airport. This state-of-the-art gym provides guests with amenities like Lululemon workout gear and Brooks Running shoes.

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

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

Direct departures

Washington, D.C. 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.

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 1271 reviews
6.9Entertainment
6.5Food
7.1Comfort
8.0Crew
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

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