€252 Find Cheap Flights from Washington Dulles Airport to Ireland

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 Ireland departing on 8/4. 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.
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Best Ireland Flight Deals from Dulles Intl

Cheapest return prices found by our users on KAYAK in the last 72 hours

Dublin
Dublin1 stop€441
Cork
Cork2 stops€715
Shannon
Shannon2 stops€628
Knock
Knock1 stop€1,478
Donegal
Donegal1 stop€786
Milltown (Kerry)
Milltown (Kerry)3 stops€731

Good to know

Low season

February

High season

August

Cheapest flight

€252
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (7% more expensive on average)
Flight from Washington Dulles Airport to Dublin

FAQs - booking Ireland flights

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Ireland?

    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 Ireland.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles Airport to Ireland 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 Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Washington Dulles Airport to Ireland with an airline and back 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 Ireland?

    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 from Washington Dulles Airport to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Ireland

  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be April, May and June. The cheapest month to fly from Washington, D.C. is November.
  • Morning departure is around 11% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top airline flying from Dulles Intl to Ireland

Need help choosing which airline to fly with from Dulles Intl to Ireland? 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.
7.1
Aer LingusOverall score based on 1070 reviews
6.4Food
7.9Crew
6.7Entertainment
7.2Boarding
7.0Comfort
Airline reviews

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.

10.0 ExcellentRALPH, Feb 2025BOS - TPA
Read more Aer Lingus reviews

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.

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

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.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

Amenity kits were never handed out. There was zero friendliness and assistance by crew. Food was uneatable. One drink was offered and no wine, with dinner or before or after. Cocktails and beverages were not encouraged and when I asked for water, none was given. Poorest, most cramped business class flight I’ve ever been on.

Book cheap flights from Washington, D.C. to Ireland

Recent return flight deals

11/3Tue
1 stopTAP AIR PORTUGAL
24h 50mIAD-DUB
19/3Wed
1 stopTAP AIR PORTUGAL
27h 05mDUB-IAD
€441
2/4Wed
1 stopTAP AIR PORTUGAL
20h 45mIAD-DUB
7/4Mon
1 stopTAP AIR PORTUGAL
25h 30mDUB-IAD
€445
1/4Tue
1 stopScandinavian Airlines
15h 10mIAD-DUB
8/4Tue
1 stopScandinavian Airlines
29h 54mDUB-IAD
€463
1/4Tue
1 stopScandinavian Airlines
15h 10mIAD-DUB
8/4Tue
2 stopsScandinavian Airlines
37h 14mDUB-IAD
€467
23/3Sun
directAer Lingus
6h 45mIAD-DUB
1/4Tue
directAer Lingus
8h 00mDUB-IAD
€484
23/3Sun
directAer Lingus
6h 45mIAD-DUB
1/4Tue
directAer Lingus
7h 55mDUB-IAD
€486
1/4Tue
2 stops
17h 05mIAD-DUB
8/4Tue
2 stops
35h 50mDUB-IAD
€513
2/4Wed
2 stops
20h 45mIAD-DUB
9/4Wed
2 stops
18h 44mDUB-IAD
€571
6/3Thu
1 stopTurkish Airlines
20h 50mIAD-DUB
11/3Tue
1 stopTurkish Airlines
24h 15mDUB-IAD
€578
26/3Wed
1 stopTurkish Airlines
18h 40mIAD-DUB
3/4Thu
1 stopTurkish Airlines
26h 10mDUB-IAD
€580

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Recent one-way flight deals

8/4Tue
2 stops
23h 55mIAD-DUB
€252
3/4Thu
2 stops
30h 40mIAD-DUB
€282
25/2Tue
1 stopIcelandair
9h 35mIAD-DUB
€318
1/4Tue
1 stopIcelandair
9h 35mIAD-DUB
€324
18/8Mon
1 stopScandinavian Airlines
32h 45mIAD-DUB
€388
30/3Sun
1 stopScandinavian Airlines
12h 00mIAD-DUB
€401
20/3Thu
1 stopTAP AIR PORTUGAL
24h 50mIAD-DUB
€405
25/4Fri
1 stopTAP AIR PORTUGAL
12h 00mIAD-DUB
€406
27/2Thu
directAer Lingus
6h 45mIAD-DUB
€452
25/2Tue
directAer Lingus
6h 45mIAD-DUB
€457

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Last minute flights from Dulles Intl to Ireland

Last minute flight, train and bus deals

25/2Tue
multi-stopIcelandair
9h 35mIAD-DUB
4/3Tue
multi-stopIcelandair
11h 55mDUB-IAD
€622
24/2Mon
multi-stopTurkish Airlines
20h 50mIAD-DUB
1/3Sat
multi-stopTurkish Airlines
37h 35mDUB-IAD
€633
24/2Mon
multi-stopScandinavian Airlines
13h 30mIAD-DUB
2/3Sun
multi-stopScandinavian Airlines
32h 35mDUB-IAD
€682
25/2Tue
directAer Lingus
6h 45mIAD-DUB
4/3Tue
directAer Lingus
8h 05mDUB-IAD
€699
25/2Tue
multi-stop
9h 35mIAD-DUB
3/3Mon
multi-stop
39h 00mDUB-IAD
€720
22/2Sat
multi-stopTAP AIR PORTUGAL
11h 50mIAD-DUB
7/3Fri
multi-stopTAP AIR PORTUGAL
15h 35mDUB-IAD
€728
21/2Fri
directAer Lingus
6h 45mIAD-DUB
28/2Fri
directAer Lingus
8h 10mDUB-IAD
€744
25/2Tue
multi-stop
9h 35mIAD-DUB
27/2Thu
multi-stop
39h 43mDUB-IAD
€757
23/2Sun
multi-stopScandinavian Airlines
36h 15mIAD-DUB
1/3Sat
multi-stopScandinavian Airlines
34h 20mDUB-IAD
€863
22/2Sat
multi-stopTAP AIR PORTUGAL
11h 50mIAD-DUB
26/2Wed
multi-stopTAP AIR PORTUGAL
32h 22mDUB-IAD
€945

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

Information on your arrival and departure airports

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