$350 Find Cheap Flights from Ireland to Washington

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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 $771 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 $771.

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 $605 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is $1,039 and $915 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 9 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 $680.


Good to know

Low seasonNovember
High seasonAugust
Cheapest flight$350
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 22% 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 $813. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $1,257 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 15% 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 $884.

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
7.2Comfort
7.5Boarding
6.5Food
8.0Crew
6.9Entertainment
Airline reviews

Paid $35 and not able to access the internet at all.

2.0 MediocreAnonymous, Apr 2025HND - JFK
Read more American Airlines reviews

Paid $35 and not able to access the internet at all.

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Flight was delayed bc of mechanical issue. New plane had different configuration so some seats had to be switched. They called all passengers who needed new boarding cards. They did not call us so we thought our seats were the same and fine. When we boarded they informed us our receipts had changed and we are now all sitting separate and in the back row. Both my daughters had meltdowns and started to cry and once we got on the flight, we figured out how we could sit closer to each other, but this was very upsetting.

Took off on time and successfully avoided weather that looked to be a problem along the way

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

Booked with Kayak… Economy Class it said. I had filtered for 1 checked bag. Get to boarding and it says I have Economy Light w/ no checked bags. $136 each way for baggage now. Do not use smartfares.com. Very misleading and a terrible start to this trip.

Overall good. I was surprised how easy it was to get from plain to plain in such a short time. Food choices were not so great and quite expensive. Entertainment was ok. Flights were smooth.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Horrible. The flight was delayed by over 3 hours but updates were barely provided. Boarding started 3 hours late then stopped because their system crashed. So now, passengers were standing for 15 minutes in the open waiting to get boarding passes scanned and get on a bus. Duty-free closed around 4-4:30. Only 1 food outlet was open and it was super slow and busy since it was serving passengers from multiple flights. So a number of passengers couldn't buy meals at the terminal. Since the flight was delayed by over 3 hours, we could have been offered snacks on-board. Nothing. The seats barely reclined. In-flight entertainment options were pitiful. Overall, a miserable experience. Never flying on Icelandair ever again. :(

Bad. Flights were late, by hours. No clear information was provided even until the delayed boarding time.

Again, lines for boarding are a problem in iceland. The flight itself was fine and very smooth. No complaints. We would definitely fly icelandair again.

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

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.

This flight was delayed and caused me to miss my connecting flight from New York to Boston. I had to rent a car and drive myself home to avoid waiting another 5 hours in the airport.

Flight was cancelled. There were no Aer Lingus reps to help. I had to rebook my flight and find a hotel. Still had nothing from the airline.

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.
6/5Thu
1 stopScandinavian Airlines
26h 45mDUB-SEA
6/13Fri
1 stopScandinavian Airlines
33h 25mSEA-DUB
$419
6/6Fri
1 stopScandinavian Airlines
26h 45mDUB-SEA
6/13Fri
1 stopScandinavian Airlines
33h 25mSEA-DUB
$423
5/11Sun
1 stopIcelandair
16h 25mDUB-SEA
5/26Mon
1 stopIcelandair
32h 05mSEA-DUB
$602
5/21Wed
1 stopIcelandair
31h 10mDUB-SEA
6/4Wed
1 stopIcelandair
27h 35mSEA-DUB
$606
5/13Tue
2 stops
19h 30mDUB-SEA
5/20Tue
2 stops
18h 50mSEA-DUB
$645
5/21Wed
2 stops
28h 50mDUB-SEA
6/4Wed
3 stops
30h 20mSEA-DUB
$655
10/22Wed
1 stopAmerican Airlines
15h 30mDUB-SEA
10/30Thu
1 stopAmerican Airlines
17h 00mSEA-DUB
$678
5/16Fri
nonstopAer Lingus
9h 40mDUB-SEA
5/29Thu
nonstopAer Lingus
9h 05mSEA-DUB
$692
5/16Fri
nonstopAer Lingus
9h 40mDUB-SEA
5/29Thu
1 stopAer Lingus
13h 45mSEA-DUB
$747
6/13Fri
1 stopAmerican Airlines
18h 40mDUB-GEG
6/20Fri
1 stopAmerican Airlines
19h 45mGEG-DUB
$1,042

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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.
6/6Fri
2 stops
35h 23mDUB-SEA
$350
5/15Thu
3 stops
59h 37mDUB-SEA
$371
5/13Tue
1 stopIcelandair
16h 25mDUB-SEA
$382
5/13Tue
3 stopsWestJet
34h 39mDUB-SEA
$387
5/13Tue
3 stopsWestJet
34h 39mDUB-SEA
$389
5/10Sat
1 stopIcelandair
16h 25mDUB-SEA
$410
6/13Fri
nonstopAer Lingus
9h 40mDUB-SEA
$580
5/12Mon
nonstopAer Lingus
9h 39mDUB-SEA
$582
8/31Sun
1 stopAmerican Airlines
14h 40mDUB-PDX
$733
6/6Fri
nonstopAmerican Airlines
9h 40mDUB-SEA
$825

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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.
5/5Mon
multi-stopBritish Airways
15h 50mDUB-SEA
5/12Mon
multi-stopBritish Airways
15h 15mSEA-DUB
$704
5/5Mon
multi-stop
31h 25mDUB-SEA
5/12Mon
multi-stop
20h 00mSEA-DUB
$729
5/1Thu
nonstopAer Lingus
9h 39mDUB-SEA
9/1Mon
nonstopAer Lingus
9h 05mSEA-DUB
$763
5/1Thu
multi-stopScandinavian Airlines
33h 40mDUB-SEA
9/1Mon
multi-stopScandinavian Airlines
18h 15mSEA-DUB
$772
5/1Thu
nonstopAer Lingus
9h 39mDUB-SEA
5/15Thu
nonstopAer Lingus
9h 05mSEA-DUB
$828
5/1Thu
multi-stopScandinavian Airlines
33h 40mDUB-SEA
9/1Mon
multi-stopScandinavian Airlines
35h 50mSEA-DUB
$851
5/5Mon
multi-stopUnited Airlines
17h 02mDUB-SEA
5/12Mon
multi-stopUnited Airlines
15h 00mSEA-DUB
$861
5/5Mon
nonstopAmerican Airlines
9h 39mDUB-SEA
5/12Mon
nonstopAmerican Airlines
9h 00mSEA-DUB
$869
5/2Fri
multi-stopUnited Airlines
39h 38mDUB-PDX
5/10Sat
multi-stopUnited Airlines
16h 19mPDX-DUB
$929
5/2Fri
multi-stopAmerican Airlines
12h 50mDUB-PDX
5/10Sat
multi-stopAmerican Airlines
14h 06mPDX-DUB
$943

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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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