€306 Find Cheap Flights to Washington

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ireland to Washington departing on 19/5. 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.
1 adult
1 adult, Economy, 0 bags

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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Flight Deals

Best Washington Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours
Seattle
Seattle1 stop€455
Spokane
Spokane2 stops€947
Seattle
Seattle1 stop€455
Spokane
Spokane2 stops€947

Book Cheap Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Washington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Washington

Tue, 5 May - Sat, 30 May
Icelandair Logo
14:15 - 17:55
DUB
-
SEA
11h 40m
1 stop
Icelandair Logo
15:40 - 11:05
SEA
-
DUB
11h 25m
1 stop
€455Icelandair
Tue, 5 May - Sat, 30 May
Icelandair Logo
14:15 - 20:40
DUB
-
SEA
14h 25m
1 stop
Icelandair Logo
15:40 - 11:05
SEA
-
DUB
11h 25m
1 stop
€461Icelandair
Thu, 21 May - Fri, 29 May
Icelandair Logo
14:15 - 20:40
DUB
-
SEA
14h 25m
1 stop
Icelandair Logo
15:40 - 13:15
SEA
-
DUB
13h 35m
1 stop
€467Icelandair
Fri, 22 May - Fri, 29 May
Scandinavian Airlines Logo
12:40 - 13:45
DUB
-
SEA
33h 05m
1 stop
Scandinavian Airlines Logo
15:55 - 09:25
SEA
-
DUB
33h 30m
1 stop
€476Scandinavian Airlines
Fri, 22 May - Sat, 30 May
Scandinavian Airlines Logo
19:50 - 13:45
DUB
-
SEA
25h 55m
2 stops
Scandinavian Airlines Logo
15:55 - 18:20
SEA
-
DUB
18h 25m
1 stop
€477Scandinavian Airlines
Thu, 21 May - Sat, 30 May
Multiple Airlines Logo
17:10 - 16:30
ORK
-
SEA
31h 20m
1 stop
Multiple Airlines Logo
13:30 - 14:25
SEA
-
ORK
16h 55m
1 stop
€537Multiple Airlines
Thu, 21 May - Fri, 29 May
Delta Logo
06:15 - 16:30
ORK
-
SEA
18h 15m
1 stop
Delta Logo
07:30 - 10:20
SEA
-
ORK
18h 50m
2 stops
€541Delta
Fri, 22 May - Sat, 30 May
Delta Logo
06:15 - 16:37
ORK
-
SEA
18h 22m
2 stops
Delta Logo
13:30 - 14:25
SEA
-
ORK
16h 55m
1 stop
€542Delta
Wed, 20 May - Wed, 27 May
Multiple Airlines Logo
13:00 - 09:30
DUB
-
PDX
28h 30m
3 stops
Multiple Airlines Logo
15:30 - 10:50
PDX
-
DUB
35h 20m
3 stops
€679Multiple Airlines
Mon, 27 Apr - Mon, 4 May
Aer Lingus Logo
16:50 - 17:10
SNN
-
SEA
32h 20m
2 stops
Aer Lingus Logo
13:30 - 20:35
SEA
-
SNN
23h 05m
1 stop
€799Aer Lingus
Booking Insights

KAYAK's insights & trends for flights to Washington

Get data-powered insights and trends into 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 return 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 €849 return. The most popular route is Dublin (DUB) to Seattle (SEA) and the cheapest return airline ticket found on this route in the last 72 hours was €849.

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 €538 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is €814 and €779 respectively.

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

The average price for all round-trip flights from Ireland to Washington depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Washington is generally in the evening, when retur flights cost €716 on average. Morning departures are around 100% 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 €716.

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 a flight from Ireland to Washington, you should book around 4 weeks before departure, which saves you about 28% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight€306
Best time to beat the crowds (1% less expensive on average)
Most popular time to fly and prices are also 10% lower on average.
Flight from Dublin to Seattle

FAQs - booking Washington flights

  • 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 travellers 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 return 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 Thursday when return tickets can be as cheap as €651. On the other hand, the most expensive day to fly is Tuesday, when return prices are €846 on average.

Top tips for finding cheap flights to Washington

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

Reviews of the top airlines flying 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
Aer LingusOverall score based on 1493 reviews
7.2Comfort
7.0Entertainment
7.4Boarding
6.6Food
8.1Crew
Airline reviews

No complimentary drinks or snacks offered on a 2 hour flight was disappointing but everything else went well

8.0 ExcellentBrittany, Mar 2026
DUB - LAX
Read more Aer Lingus reviews

No complimentary drinks or snacks offered on a 2 hour flight was disappointing but everything else went well

All aspects were excellent - it helped that the flight was only 2/3 full and I had no one sitting in my row. The Pre-check (US Passport Control and Customs) in Dublin made everything so easy when we arrived in Chicago.

I love the direct flights. It saves a lot of hassle and allows immigration and customs in Ireland, making arrival much easier.

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

One of the best flight experiences I've have had in along time. Would fly with them again.

So, the trip from Dublin to LA did not really happen because the flight took off before we could finish the transfer.

Very nice experience. Flight had good entertainment system and good food options. Customer service was very friendly and nice as well.

Like - the crew were nice Dislike - sitting on the tarmac for long periods after boarding and landing.

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

It’s my new favourite airline! Everything was smooth and relaxed!

Waiting area on top of stairs before Boarding the bus wasn’t great. Took a long time to load the bus to gate.

The real reason why the flying experience with Icelandair ---was mediocre was because of not being able to enter DC airspace yesterday evening. This obviously was out of your control and do realize this is a safety issue. I did notice---that everything was being done to get us to Washington Dulles and we did arrive at Dulles SAFELY with just a 4 hour delay. Thank you!

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

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.