£262 Find Cheap Flights from Ireland to Washington, D.C. – Compare and Save

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Cheap Flights from Ireland to Dulles Intl

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

Recent return flight deals from Ireland to Dulles Intl

Fri, 6 Nov - Thu, 12 Nov
Scandinavian Airlines Logo
11:30 - 18:50DUB  Dublin-IAD Washington, D.C. Dulles Intl
36h 20m2 stops Stockholm Arlanda Kastrup Copenhagen
Scandinavian Airlines Logo
20:30 - 09:20IAD  Washington, D.C. Dulles Intl-DUB Dublin
31h 50m2 stops Kastrup Copenhagen Stockholm Arlanda
£262Scandinavian Airlines
Tue, 24 Nov - Mon, 30 Nov
Scandinavian Airlines Logo
19:05 - 17:15DUB  Dublin-IAD Washington, D.C. Dulles Intl
27h 10m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
20:30 - 18:20IAD  Washington, D.C. Dulles Intl-DUB Dublin
16h 50m1 stop Kastrup Copenhagen
£343Scandinavian Airlines
Tue, 24 Nov - Thu, 3 Dec
Icelandair Logo
11:30 - 18:30DUB  Dublin-IAD Washington, D.C. Dulles Intl
12h 00m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:40 - 10:15IAD  Washington, D.C. Dulles Intl-DUB Dublin
9h 35m1 stop Reykjavik Keflavik Intl
£345Icelandair
Fri, 27 Nov - Thu, 3 Dec
Icelandair Logo
11:30 - 18:30DUB  Dublin-IAD Washington, D.C. Dulles Intl
12h 00m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:40 - 10:15IAD  Washington, D.C. Dulles Intl-DUB Dublin
9h 35m1 stop Reykjavik Keflavik Intl
£345Icelandair
Sun, 1 Nov - Sun, 8 Nov
Aer Lingus Logo
15:50 - 19:20DUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 30mdirect
Aer Lingus Logo
17:15 - 05:05IAD  Washington, D.C. Dulles Intl-DUB Dublin
6h 50mdirect
£387Aer Lingus
Wed, 30 Sep - Mon, 16 Nov
Aer Lingus Logo
12:35 - 15:45DUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 10mdirect
Aer Lingus Logo
17:15 - 05:05IAD  Washington, D.C. Dulles Intl-DUB Dublin
6h 50mdirect
£407Aer Lingus
Tue, 20 Oct - Tue, 10 Nov
Aer Lingus Logo
12:35 - 15:45DUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 10mdirect
Aer Lingus Logo
20:50 - 08:45IAD  Washington, D.C. Dulles Intl-DUB Dublin
6h 55mdirect
£420Aer Lingus
Tue, 29 Sep - Fri, 9 Oct
United Airlines Logo
09:20 - 15:00DUB  Dublin-IAD Washington, D.C. Dulles Intl
10h 40m1 stop Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
22:35 - 10:40IAD  Washington, D.C. Dulles Intl-DUB Dublin
7h 05mdirect
£435United Airlines
Mon, 28 Sep - Thu, 8 Oct
United Airlines Logo
09:20 - 15:00DUB  Dublin-IAD Washington, D.C. Dulles Intl
10h 40m1 stop Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
22:35 - 10:40IAD  Washington, D.C. Dulles Intl-DUB Dublin
7h 05mdirect
£435United Airlines
Tue, 29 Sep - Fri, 9 Oct
United Airlines Logo
09:20 - 11:13DUB  Dublin-IAD Washington, D.C. Dulles Intl
30h 53m1 stop Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
19:05 - 07:20IAD  Washington, D.C. Dulles Intl-DUB Dublin
7h 15mdirect
£435United Airlines
Booking Insights

KAYAK's insights & trends for flights to Dulles Intl

Get data-powered insights and trends into flights to Dulles Intl 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 £588. On the other hand, the most expensive day to fly is Wednesday, where round-trip prices are £684 on average.

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

The cheapest month for flights to Washington, D.C. Dulles Intl Airport is November, where tickets cost £359 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 £622 and £606 respectively. For one-way flights, the best month to travel is February with an average price of £375.

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

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the evening, when round-trip flights cost £538 on average. The most expensive time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the morning, which is peak travel time and where the average cost of a ticket is £658.

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

If you’re looking for cheap airfare to Washington, D.C. Dulles Intl Airport, 25% of our users found tickets to Washington, D.C. Dulles Intl Airport for the following prices or less: From Dublin £558 return.

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

To get a below average price, you should book around 2 weeks before departure, which saves you about 10% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

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

Low season

February

Cheapest flight

£262
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly and prices are also 7% lower on average.
Flight from Dublin to Washington, D.C.

FAQs - booking Washington, D.C. flights

  • How far is Washington, D.C. Dulles Intl Airport from central Washington, D.C.?

    There are 22 miles between Washington, D.C. city centre and Washington, D.C. Dulles Intl Airport.

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

    On average, a flight to Washington, D.C. costs £788. The cheapest price found on KAYAK in the last 2 weeks cost £400 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 travellers 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 return 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 cheap airfare to Washington, D.C.? 25% of our users found round-trip tickets to Washington, D.C. for the following prices or less: Cheap flights to Washington, D.C. from Dublin £521
  • 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 Dulles Intl

 
Need help choosing which airline to fly with to Dulles Intl? 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.
7.4
United AirlinesOverall score based on 10231 reviews
7.1Entertainment
7.3Comfort
6.7Food
7.7Boarding
8.1Crew
Airline reviews

Awful!!!. I do not recommend United. The flight staff are unhappy and don't attempt to make the passengers feel comfortable or welcome. The food is not edible, and the seats are miserable. My expensive luggage was destroyed, and the ticket prices are too much for the experience.

4.0 OkayJohn, Sept 2026
Read more United Airlines reviews

Awful!!!. I do not recommend United. The flight staff are unhappy and don't attempt to make the passengers feel comfortable or welcome. The food is not edible, and the seats are miserable. My expensive luggage was destroyed, and the ticket prices are too much for the experience.

On time, easy boarding. Anytime you sit in an economy seat, it’s uncomfortable. New plane and the bathrooms were in the galley at the back of the plane which seemed odd.

Did not like the check in guy quibbling over a couple pounds at the luggage weigh in

Just having a little bit more legroom would've been nice.

This is related to my second leg of the flight, from Washington DC to SFO. I understand things happen, but I got home at 3 am for a 12:59 am landing. I live 10 min from the airport. Bridge breaks when a few rows of the plane are off? Maintenance didn’t catch that?

Great Brasilia aircraft - not a Boeing 757 like the next part of the flight. Flight from MCI to IAD was great, on-time, comfortable, did I mention that? The flight from IAD to EDI was painful. One of the reasons I won't fly United again? Boeing 757, with a seat pitch and material that was horrendous. Worst aircraft ever, made worse by United sardine-can tight seating. Oh, and the connection window, 45 minutes, really? At IAD, in different concourses? What idiot came up with that flight scenario? Happily, (for me and my travel insurance people) the flight was late (reminiscent of American Airlines). The crew was professional and courteous.

great starting with the business Class that's was Amazing . thank you United Airlines and brussels Airlines

Best flight in years. Pre-boarding because of my mobility issues. Good food and beverage from beginning to end. Excellent choice of films. Good service by stewardesses. Comfortable seats. I could lie down!

No drink service but there was no N/A as an option to choose. Seats were extremely tight. I am under 5.5 and I bumped my knees have no idea how taller people could manage.

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

The crew was first rate. They allowed me to switch my middle seat to an isle seat and it made my flight home so much more comfortable.

Everything went very smoothly I loved having the earphones and the blanket and the staff was just super friendly

I was advertised a free seat selection for a "Smart" fare through BusinessClass.com. I was never able to select a seat. I thus paid extra for a bill of goods I was never provided. would love to speak with a representative of Kayak

Overall good. We weren't able to find out about food options for the flight and there was nothing I could eat due to allergies. The biggest problem was getting our checked bag at Logan. Waited an hour!

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.

Travelling to a place near Dulles Intl?

Book flights to Dulles Intl if you plan to visit one of these locations
Winchester
Alexandria
Woodbridge
Fairfax
Annapolis
Rockville
Silver Spring
Tysons
Chantilly
Fredericksburg
Sterling
Gaithersburg
Laurel
Reston
National Harbor
Front Royal
Cambridge
Westminster
Martinsburg
Springfield

More options for your flight to Dulles Intl