$321 Find Cheap Flights from Ireland to Washington

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Washington

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, as well as popular online travel agencies
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KAYAK's insights & trends for flights to Washington

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

What is the cheapest flight to Washington?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to Washington from Ireland found in the last 72 hours was to Seattle, at $670 round-trip. The most popular route is Dublin (DUB) to Seattle (SEA) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $670.

What is the cheapest month to fly from Ireland to Washington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ireland to Washington, 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 Ireland to Washington is February, when tickets cost $608 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is $1,038 and $891 respectively.

How far in advance should I book a flight from Ireland to Washington?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Washington, 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 Ireland to Washington, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Which is the cheapest airport to fly into in Washington?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Washington is Seattle/Tacoma Intl Airport (SEA), with an average flight price of $679.


Good to know

Low seasonNovember
High seasonAugust
Cheapest flight$321
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Dublin to Seattle

FAQs for booking flights from Ireland to Washington

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

    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 Ireland to Washington.

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

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

    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 from Ireland to Washington 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 Ireland to Washington?

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

  • What is the cheapest day to fly to Washington?

    Based on KAYAK data, the cheapest day to fly to Washington is Sunday where round-trip tickets can be as cheap as $698. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $1,261 on average.

  • What is the cheapest time of day to fly to Washington?

    The cheapest time of day to fly to Washington is generally in the morning, when round-trip flights cost $750 on average. Morning departures are around 13% cheaper than evening flights, on average. The most expensive time of day to fly to Washington is generally in the evening, which is peak travel time and where the average cost of a ticket is $860.

Top 3 airlines serving from Ireland to Washington

 
See real verified KAYAK customer reviews for airlines flying to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Washington. 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 Ireland to Washington? 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
American AirlinesOverall score based on 10000 reviews
8.0Crew
6.5Food
7.2Comfort
6.9Entertainment
7.5Boarding
Airline reviews

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

2.0 MediocreJose David, Jun 2025MIA - DTW
Read more American Airlines reviews

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious. this return flight not as tasty, but filling.

The flight was 2 hour delayed, otherwise everything was excellent. The delay was due to the hourly limit requirement so given that as a reason, I'm happy with the flight!

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

The pilots are always hauling in the sky. No issues with boarding only problem was layover was shortened too much by weather but luckily the next flight was still boarding and did not missit

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

i used to fly aer Lingus regularly but due to price - poor seating etc i have been using other carriers - i now have aer lingus in my state and the price is always the highest - i have flown to Ireland 11 times in last 24 months and have not used Hartford because of price

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

This flight was of exactly the same high standard as the outbound leg, exactly a week earlier - except that we didn't have any food or drink because it departed at around midnight.

Unfortunately the flight was delayed for 50 min. Just as we were about to board so that was a drag. The boarding was average. The bag check in process was new to us and efficient. And the flight itself was smooth- basically no turbulence.

It was ok not that much because I always travel with Emirates airlines, Etihad, airlines, Qatar airlines compare to them food and comfortable was too low . Staff was good . Helpful

I believe it was short flight in plane I understand not that much compared to other airlines but weighting for checkin was too long need extra person for checkin or Atleast someone to let the customer knows don’t worry someone will be here shortly.

Noted in last review. Good to know, though air Lingus on European flights does not offer any food or drink, even though we were on the plane for 3 1/2 hours from Naples to Dublin everything you had to purchase even water.

Booked through Kayak, couldnt take flight, Kayak punted to Orbiz, Orbiz punted to Aer Lingus, Aer Lingus said sorry about your luck, try Kayak/Orbiz. Terrible customer service collecting air fares and not even offering a voucher when customers cant take flight

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset. If there is option to use another company, I suggest to other people use them.

I had an exit row and so was Comfortable on the long flight.

The seats on this airline are sooo small, even for a petite person. I felt like the seat tilted forward and I was fighting to stay in it. The lavatory is horribly small, with a wet floor because the sink is so small you can't help but splash the water all over when washing up.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

No food was served for 7.5 hrs flight. When our flight changed to other airlines due to wether issue, our seats booked with no checked in luggage when I already payed for. We end up to pay 90 euro per suitcase.

The flights were in time and the bags arrived. well done

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

Book cheap flights from Ireland to Washington

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Washington found on KAYAK in the last 72 hours.
9/24Wed
2 stopsScandinavian Airlines
41h 43mDUB-SEA
10/10Fri
1 stopScandinavian Airlines
33h 05mSEA-DUB
$481
10/8Wed
2 stopsScandinavian Airlines
36h 19mDUB-SEA
10/23Thu
2 stopsScandinavian Airlines
42h 05mSEA-DUB
$495
9/10Wed
1 stopIcelandair
16h 25mDUB-SEA
10/1Wed
1 stopIcelandair
13h 30mSEA-DUB
$586
11/7Fri
1 stopAmerican Airlines
27h 31mDUB-SEA
11/10Mon
2 stopsAmerican Airlines
23h 50mSEA-DUB
$587
11/7Fri
1 stopAmerican Airlines
16h 59mDUB-SEA
11/10Mon
1 stopAmerican Airlines
24h 58mSEA-DUB
$605
9/24Wed
1 stopIcelandair
13h 35mDUB-SEA
10/10Fri
1 stopIcelandair
13h 30mSEA-DUB
$635
10/8Wed
nonstopAer Lingus
9h 40mDUB-SEA
10/23Thu
nonstopAer Lingus
9h 05mSEA-DUB
$662
10/8Wed
1 stopBritish Airways
13h 35mDUB-SEA
10/23Thu
1 stopBritish Airways
12h 20mSEA-DUB
$672
7/3Thu
1 stopBritish Airways
16h 33mDUB-SEA
7/20Sun
2 stopsBritish Airways
24h 44mSEA-DUB
$795
7/15Tue
nonstopAer Lingus
9h 40mDUB-SEA
7/21Mon
1 stopAer Lingus
12h 55mSEA-DUB
$803

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Washington found on KAYAK in the last 72 hours.
9/15Mon
2 stops
34h 40mDUB-SEA
$321
9/8Mon
2 stops
33h 45mDUB-SEA
$342
6/25Wed
2 stopsWestJet
33h 22mDUB-PDX
$373
10/8Wed
2 stopsWestJet
33h 29mDUB-SEA
$389
12/8Mon
1 stopIcelandair
13h 30mDUB-SEA
$424
10/17Fri
1 stopIcelandair
13h 35mDUB-SEA
$427
12/8Mon
nonstopAer Lingus
9h 50mDUB-SEA
$547
9/8Mon
nonstopAer Lingus
9h 40mDUB-SEA
$607
11/13Thu
1 stopAmerican Airlines
35h 25mDUB-PDX
$698
11/9Sun
2 stopsAmerican Airlines
19h 22mDUB-PDX
$704

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Last minute flights to Washington

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Washington that are departing in the next 10 days.
6/13Fri
nonstopAer Lingus
9h 40mDUB-SEA
6/27Fri
nonstopAer Lingus
9h 00mSEA-DUB
$791
6/13Fri
nonstopAer Lingus
9h 40mDUB-SEA
6/27Fri
nonstopAer Lingus
9h 00mSEA-DUB
$794
6/13Fri
nonstopAer Lingus
9h 40mDUB-SEA
6/27Fri
nonstopAer Lingus
9h 00mSEA-DUB
$817
6/13Fri
multi-stopScandinavian Airlines
33h 10mDUB-SEA
6/27Fri
multi-stopScandinavian Airlines
18h 10mSEA-DUB
$863
6/13Fri
multi-stopScandinavian Airlines
33h 10mDUB-SEA
6/27Fri
multi-stopScandinavian Airlines
18h 10mSEA-DUB
$866
6/13Fri
multi-stopAir Canada
18h 47mDUB-SEA
6/27Fri
multi-stopAir Canada
16h 55mSEA-DUB
$1,059
6/13Fri
multi-stopAir Canada
16h 43mDUB-SEA
6/27Fri
multi-stopAir Canada
18h 15mSEA-DUB
$1,134
6/14Sat
multi-stopKLM
13h 20mORK-PDX
6/18Wed
multi-stopKLM
26h 15mPDX-ORK
$1,151
6/14Sat
multi-stopKLM
19h 10mORK-PDX
6/18Wed
multi-stopKLM
26h 15mPDX-ORK
$1,157
6/13Fri
nonstopAmerican Airlines
9h 40mDUB-SEA
6/27Fri
multi-stopAmerican Airlines
14h 18mSEA-DUB
$1,325

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Everything you need to know for your flight to Washington

Cabin class types available on flights to Washington

Cabin classes available on flights to Washington. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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