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IAD - DUB

€239 Find Cheap Flights from Washington Dulles Airport 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 Dulles Intl to Dublin departing on 22/6. 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

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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Cheap Flight Deals from Dulles Intl to Dublin (IAD-DUB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Dulles Intl 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.

Recent return flight deals from Dulles Intl to Dublin

KAYAK's recommended return flight deals from the most popular airlines that fly from Dulles Intl to Dublin.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
British Airways Logo
22:40 - 14:35IAD-DUB
10h 55m1 stop
British Airways Logo
12:45 - 20:10DUB-IAD
12h 25m1 stop
€400British Airways
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Wed, 4 Jun - Thu, 10 Jul
American Airlines Logo
22:40 - 14:50IAD-DUB
11h 10m1 stop
American Airlines Logo
09:45 - 17:35DUB-IAD
12h 50m1 stop
€401American Airlines
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Wed, 4 Jun - Thu, 10 Jul
Scandinavian Airlines Logo
22:05 - 18:15IAD-DUB
15h 10m1 stop
Scandinavian Airlines Logo
12:40 - 19:59DUB-IAD
12h 19m1 stop
€422Scandinavian Airlines
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Mon, 6 Oct - Thu, 16 Oct
Scandinavian Airlines Logo
22:05 - 18:15IAD-DUB
15h 10m1 stop
Scandinavian Airlines Logo
12:40 - 19:59DUB-IAD
12h 19m1 stop
€424Scandinavian Airlines
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Wed, 8 Oct - Wed, 22 Oct
Logo
22:10 - 11:10IAD-DUB
32h 00m1 stop
Logo
09:50 - 09:37DUB-IAD
28h 47m1 stop
€435
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Sat, 9 Aug - Tue, 19 Aug
Air Canada Logo
14:25 - 07:45IAD-DUB
36h 20m2 stops
Air Canada Logo
09:20 - 21:01DUB-IAD
16h 41m1 stop
€446Air Canada
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Sat, 9 Aug - Tue, 19 Aug
Aer Lingus Logo
17:20 - 05:10IAD-DUB
6h 50mdirect
Aer Lingus Logo
16:35 - 19:30DUB-IAD
7h 55mdirect
€487Aer Lingus
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Wed, 30 Apr - Wed, 7 May
Air Canada Logo
09:45 - 07:45IAD-DUB
17h 00m1 stop
Air Canada Logo
09:20 - 16:18DUB-IAD
11h 58m1 stop
€493Air Canada
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Sun, 24 Aug - Thu, 4 Sep
Logo
22:15 - 10:20IAD-DUB
7h 05mdirect
Logo
09:20 - 21:01DUB-IAD
16h 41m1 stop
€494
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Wed, 6 Aug - Tue, 9 Sep
Aer Lingus Logo
22:40 - 14:50IAD-DUB
11h 10m1 stop
Aer Lingus Logo
16:35 - 19:30DUB-IAD
7h 55mdirect
€550Aer Lingus
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Tue, 3 Jun - Tue, 10 Jun

KAYAK's insights & trends for Dulles Intl to Dublin flights

Get data-powered insights and trends into flights from Dulles Intl 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 Dulles Airport 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.
Your flight ticket price will generally be cheaper if you fly to Dublin on a Tuesday and more expensive on a Wednesday. On your return trip to Washington Dulles Airport, you should consider flying back on a Monday, and avoid Saturdays for better deals.

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 November, where tickets cost €504 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is €916 and €855 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. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.
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Good to know

Low season

February

High season

May

Cheapest flight

€239
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly (7% more expensive on average)
Flight from Washington Dulles Airport to Dublin

When to book flights from Dulles Intl to Dublin

Are your dates flexible? Find out the best times to travel from Dulles Intl 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 Dulles Airport 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 €271 for a one-way ticket and €454 for a return.

  • Which airlines offer Wi-Fi service onboard planes from Washington Dulles Airport to Dublin?

    American Airlines, SWISS, and United Airlines offer inflight Wi-Fi service on the Washington Dulles Airport to Dublin flight route.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Dublin?

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

  • Which airline alliances offer flights from Washington Dulles Airport to Dublin?

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

  • On which days can I fly direct from Washington Dulles Airport to Dublin?

    There are direct flights from Washington Dulles Airport to Dublin on a daily basis.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport 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 Dulles Airport to Dublin.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dublin from Washington Dulles Airport 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 Dulles Airport 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 Dulles Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport 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 Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

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

  • Looking for a cheap flight? 25% of our users found flights on this route for €705 or less round-trip.

Prefer to fly 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, Air Canada, American Airlines, +4 more

Aer Lingus, Air Canada, +5 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +4 more

Aer Lingus, Air Canada, +5 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +4 more

Aer Lingus, Air Canada, +5 more

Thursday

Aer Lingus, Air Canada, American Airlines, +4 more

Aer Lingus, Air Canada, +5 more

Friday

Aer Lingus, Air Canada, American Airlines, +4 more

Aer Lingus, Air Canada, +5 more

Saturday

Aer Lingus, Air Canada, American Airlines, +4 more

Aer Lingus, Air Canada, +5 more

Sunday

Aer Lingus, Air Canada, American Airlines, +4 more

Aer Lingus, Air Canada, +5 more

See more direct flights

Direct returns

Dublin to Washington, D.C. Dulles Intl

Monday

Aer Lingus, Air Canada, American Airlines, +4 more

Aer Lingus, Air Canada, +5 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +3 more

Aer Lingus, Air Canada, +4 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +4 more

Aer Lingus, Air Canada, +5 more

Thursday

Aer Lingus, Air Canada, American Airlines, +4 more

Aer Lingus, Air Canada, +5 more

Friday

Aer Lingus, Air Canada, American Airlines, +4 more

Aer Lingus, Air Canada, +5 more

Saturday

Aer Lingus, Air Canada, American Airlines, +4 more

Aer Lingus, Air Canada, +5 more

Sunday

Aer Lingus, Air Canada, American Airlines, +4 more

Aer Lingus, Air Canada, +5 more

See more direct flights
See more direct flights

Top airline flying from Dulles Intl 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 Dulles Intl 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.
7.0
Aer LingusOverall score based on 1063 reviews
6.4Food
7.0Comfort
7.9Crew
6.7Entertainment
7.2Boarding
Airline reviews

Boarding seemed a bit chaotic and we had to walk outside across the tarmac. Passengers of all ages had to drag carry on luggage up the outside stairway into the aircraft. There was no WiFi. Very uncomfortable crammed seats. Glad in-air time was only an hour!

6.0 GoodDeborah, Apr 2025LHR - DUB
Read more Aer Lingus reviews

Boarding seemed a bit chaotic and we had to walk outside across the tarmac. Passengers of all ages had to drag carry on luggage up the outside stairway into the aircraft. There was no WiFi. Very uncomfortable crammed seats. Glad in-air time was only an hour!

There was no flight. I booked a flight from Toronto to Bordeaux with a stopover in Dublin. I arrived in Dublin and the flight number I had didn't exist and the flight going to Bordeaux I wasn't on. I had to book a new flight with a different airline for later in the day and pay out of pocket.

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

Very polite and helpful staff. Jet blue…ok, but not as helpful!..

Seat was very uncomfortable. The worst in all of my travels. It sagged in the middle, worse than anything any airline can offer. Not flying aer lingus again.

My Aer Lingus flight (booking ref # 2SU4LF) was the worst travel experience I have ever dealt with. My flight from Paris to Dublin was delayed by over 2 hours which caused me to miss my connecting flight back to the US. I was not able to be rebooked on a new flight for another 3 days. When I finally made it on my rescheduled flight, it was delayed AGAIN, causing me to miss my connecting flight from New York to Boston. At this point I decided to just rent a car since the next flight I would have been able to get in wasn’t for another 5 hours. It was a complete nightmare experience and I will never fly Aer Lingus again. I have requested a refund from the booking company I placed my order with.

They couldn't do through check-in for us. They took 2 hours to issue just one leg of the boarding pass. They had no idea to handle the case of passengers who travels to USA via Dublin airport. we had tough time time Dublin airport as boarding pass for the US flight was not pre-issued. Hope Aer Lingus will learn to handle such cases which they couldn't learn in in the past 50 years of the service.

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

Both flights late. Almost missed connecting flight and flight staff not willing to help expedite us off the plane.

Everything you need to know for your flight from Dulles Intl to Dublin

Information on your arrival and departure airports

Dublin (DUB)
Washington Dulles Airport (IAD)

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