$401 Find Cheap Flights from Ireland to Washington, D.C. - Compare and Save

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Cheap Flights from Ireland to Washington, D.C.

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ireland to Washington, D.C.

Fri, Feb 12 - Mon, Feb 15
Scandinavian Airlines Logo
12:30 pm - 6:50 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
35h 20m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
8:30 pm - 11:45 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
34h 15m1 stop Kastrup Copenhagen
$592Scandinavian Airlines
Wed, Nov 11 - Tue, Nov 17
Multiple Airlines Logo
10:00 am - 3:15 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
34h 15m2 stops Madrid Barajas Lisbon Humberto Delgado
Multiple Airlines Logo
5:25 pm - 8:10 pmIAD  Washington, D.C. Dulles Intl-DUB Dublin
21h 45m2 stops Lisbon Humberto Delgado Madrid Barajas
$593Multiple Airlines
Fri, Feb 12 - Mon, Feb 15
Scandinavian Airlines Logo
12:30 pm - 6:50 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
35h 20m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
8:30 pm - 11:45 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
34h 15m1 stop Kastrup Copenhagen
$596Scandinavian Airlines
Fri, Feb 12 - Mon, Feb 15
Scandinavian Airlines Logo
12:30 pm - 6:50 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
35h 20m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
8:30 pm - 10:45 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
33h 15m2 stops Kastrup Copenhagen Stockholm Arlanda
$601Scandinavian Airlines
Mon, Nov 23 - Mon, Nov 30
Icelandair Logo
11:30 am - 6:30 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
12h 00m1 stop Reykjavik Keflavik Intl
Icelandair Logo
7:40 pm - 10:15 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
9h 35m1 stop Reykjavik Keflavik Intl
$608Icelandair
Wed, Dec 2 - Wed, Dec 9
Icelandair Logo
11:30 am - 6:30 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
12h 00m1 stop Reykjavik Keflavik Intl
Icelandair Logo
7:40 pm - 10:15 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
9h 35m1 stop Reykjavik Keflavik Intl
$609Icelandair
Fri, Nov 20 - Thu, Nov 26
Icelandair Logo
11:30 am - 6:30 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
12h 00m1 stop Reykjavik Keflavik Intl
Icelandair Logo
7:40 pm - 10:15 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
9h 35m1 stop Reykjavik Keflavik Intl
$614Icelandair
Thu, Nov 26 - Thu, Dec 3
Aer Lingus Logo
12:20 pm - 3:45 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 25mnonstop
Aer Lingus Logo
5:15 pm - 5:05 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
6h 50mnonstop
$688Aer Lingus
Fri, Feb 12 - Mon, Feb 15
Aer Lingus Logo
12:20 pm - 3:45 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 25mnonstop
Aer Lingus Logo
5:15 pm - 5:05 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
6h 50mnonstop
$688Aer Lingus
Tue, Nov 24 - Sun, Dec 6
Aer Lingus Logo
3:50 pm - 7:20 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 30mnonstop
Aer Lingus Logo
8:50 pm - 8:45 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
6h 55mnonstop
$690Aer Lingus
Booking Insights

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

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

What is the cheapest day to fly to Washington, D.C.?

Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Tuesday where round-trip tickets can be as cheap as $701. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $858 on average.

What is the cheapest month to fly to Washington, D.C.?

The cheapest month for flights to Washington, D.C. is November, where tickets cost $528 on average for return flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from Ireland is $785 and $771 respectively. For one-way flights, the best month to travel is February with an average price of $486.

What is the cheapest time of day to fly to Washington, D.C.?

The cheapest time of day to fly to Washington, D.C. is generally in the evening, when round-trip flights cost $704 on average. The most expensive time of day to fly to Washington, D.C. is generally in the morning, which is peak travel time and where the average cost of a ticket is $804.

What is a good deal for flights to Washington, D.C.?

If you’re looking for cheap airfare to Washington, D.C., 25% of our users found tickets to Washington, D.C. for the following prices or less: From Dublin $556 round-trip.

How far in advance should I book a flight to Washington, D.C.?

To get a below average price, you should book around 2 weeks before departure, which saves you about 4% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Which is the cheapest airport to fly into in Washington, D.C.?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Washington, D.C. is Baltimore/Washington Airport (BWI), with an average flight price of $258.

Good to know

Low season

January

Cheapest flight

$401
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from Shannon to Washington, D.C.

FAQs - booking Washington, D.C. flights

  • Which Washington, D.C. airport is closest to central Washington, D.C.?

    Out of the 2 airports in Washington, D.C., Reagan Washington National Airport is the nearest to the city center (4 miles). You'll travel 22 miles to reach the center of Washington, D.C. if you land in Washington Dulles Airport

  • How much is a flight to Washington, D.C.?

    On average, a flight to Washington, D.C. costs $587. The cheapest price found on KAYAK in the last 2 weeks cost $438 and departed from Dublin Airport.

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

    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 to Washington, D.C..

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to 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 to Washington, D.C.?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. 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 to Washington, D.C.?

    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 Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Washington, D.C.

  • Looking for a cheap flight? 25% of our users found flights on this route for $531 or less one-way and $556 or less round-trip.

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington, D.C. flight deals.

Reviews of the top airlines flying from Ireland to Washington, D.C.

 
Need help choosing which airline to fly with to Washington, D.C.? 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.
7.3
Aer LingusOverall score based on 1865 reviews
7.1Entertainment
8.1Crew
6.7Food
7.2Comfort
7.5Boarding
Airline reviews

The staff on the flight were utterly brilliant; there was a young man who was particularly exceptional. Boarding was quick and seamless, and service was great! Seats were fab, as was the entertainment and its ease of access

10.0 ExcellentJessica, Oct 2026
Read more Aer Lingus reviews

The staff on the flight were utterly brilliant; there was a young man who was particularly exceptional. Boarding was quick and seamless, and service was great! Seats were fab, as was the entertainment and its ease of access

i’m The staff on my flight were amazing as always, beautiful professional staff, they do amazing job. the food ? room for improvement

The agents at the boarding desk were not very helpful, however the hostesses on board the flight were great, the food was ok, and there were lots for choices for entertainment. I was stuck in an middle row seat which was a pain on a full flight, but otherwise the flight was great.

First time flying airline. Great experience. Clean plane, comfortable seating, great service.

The boarding time for this flight was ridiculous, longest in all my time flying. There was a problem with the original plane so it was switched at the last minute. Not a good substitution. We were delayed in departing. The bathrooms for economy were not adequate. The crew were pleasant but not present in the economy section, in an ~ 8hr flight only twice did they come through offering water, easy to get very dehydrated. I had to go and ask every hour for more water. The seats were cramped, and I have no idea what they did to the coffee but it was undrinkable. The food, was disgusting, utterly inedible, I am stunned by the lack of care and quality with the inflight service, very disappointing, I had expected better from Aer Lingus.

I was not admitted to the flight!!! i need a refund for this.

I was so grateful for the kindness of the crew. They made a long trip very pleasant. Food was delicious. Many movie options

We were very satisfied and would fly with Aer Lingus again in the future.

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.

First the price I paid was excellent, my flight was full, but my seat was roomy. The one downside to the experience was they had games on the entertainment console. The guy behind me poked at my head about half the flight. I hope they get rid of this feature.

Worst boarding experience, flight extremely delayed causing super tight connect and deplaning was a disaster as ppl were pushing and shoving to get off. Then after flying over 8 hours had to get off a job to next flight. Limited beverage service in Business class (water or white wine) no food. The plane was very cold (temperature) so uncomfortable

- delayed because video screens not working - delayed getting a gate at DCA Just continued bad experience IAH to DCA.

The business class service was very good. The crew was helpful and the food was enjoyable. Boarding was well organized.

Entertainment was great. Seats were good. They did not have my pre-ordered hot food product available but did comp me something cold in place of the item.

No water or beverage was provided. I had to ask for water. The sole flight attendant had more interest in selling the credit card. In addition when we got to Dulles the plane and gate were misaligned and it took at least 15 minutes to get off the plane.

Flight was delayed almost an hour because the cleaning crew broke one of the bathroom doors.

When we boarded we were treated with care and it never stopped. Got towels before breakfast and after snacks was a lovely touch!

The flight crew was the worst I've experienced. If they worked for me, I would fire them immediately. They never smiled, they seemed angry and avoided passengers as much as possible. The food was not edible, and my luggage was lost. I will never fly United again!!!

Fought with Lufthansa was poor, seats are uncomfortable, food was bad and luggage did not arrive to IA

Slight delay but not bad. UA app worked well! Got regular updates of gate changes, etc. Don't have any complaints.

Traveling to a place near Washington, D.C.?

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Linthicum Heights
Hanover
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Gaithersburg
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Owings Mills
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Greenbelt
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Edgewood
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Ellicott City
Pikesville
Hunt Valley
Capitol Heights
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Colonial Beach
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Westminster

More options for your flight to Washington, D.C.