€322 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 6/9. 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€517
Spokane
Spokane2 stops€699
Seattle
Seattle1 stop€517
Spokane
Spokane2 stops€699

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

Fri, 11 Sep - Sat, 19 Sep
Scandinavian Airlines Logo
19:05 - 13:45
DUB
-
SEA
26h 40m
1 stop
Scandinavian Airlines Logo
15:55 - 18:20
SEA
-
DUB
18h 25m
1 stop
€517Scandinavian Airlines
Tue, 15 Sep - Tue, 6 Oct
JetBlue Logo
10:40 - 22:38
DUB
-
SEA
19h 58m
1 stop
JetBlue Logo
23:55 - 08:20
SEA
-
DUB
24h 25m
1 stop
€523JetBlue
Tue, 8 Sep - Fri, 11 Sep
Multiple Airlines Logo
10:40 - 13:50
DUB
-
PDX
35h 10m
2 stops
Multiple Airlines Logo
19:05 - 00:30
PDX
-
DUB
21h 25m
2 stops
€658Multiple Airlines
Tue, 8 Sep - Fri, 11 Sep
Multiple Airlines Logo
13:15 - 13:50
DUB
-
PDX
32h 35m
3 stops
Multiple Airlines Logo
19:05 - 00:30
PDX
-
DUB
21h 25m
2 stops
€665Multiple Airlines
Thu, 19 Nov - Mon, 23 Nov
British Airways Logo
20:05 - 16:55
SNN
-
SEA
28h 50m
1 stop
British Airways Logo
14:46 - 16:45
SEA
-
SNN
17h 59m
2 stops
€735British Airways
Thu, 19 Nov - Mon, 23 Nov
British Airways Logo
20:05 - 16:55
SNN
-
SEA
28h 50m
1 stop
British Airways Logo
18:50 - 16:45
SEA
-
SNN
13h 55m
1 stop
€735British Airways
Sun, 26 Jul - Sun, 2 Aug
Aer Lingus Logo
07:10 - 17:10
ORK
-
SEA
18h 00m
2 stops
Aer Lingus Logo
19:10 - 23:50
SEA
-
ORK
20h 40m
2 stops
€777Aer Lingus
Fri, 2 Oct - Tue, 6 Oct
United Airlines Logo
12:30 - 21:55
SNN
-
SEA
17h 25m
1 stop
United Airlines Logo
12:59 - 10:15
SEA
-
SNN
13h 16m
1 stop
€828United Airlines
Fri, 2 Oct - Tue, 6 Oct
United Airlines Logo
12:30 - 22:59
SNN
-
SEA
18h 29m
2 stops
United Airlines Logo
10:42 - 10:15
SEA
-
SNN
15h 33m
2 stops
€829United Airlines
Wed, 5 Aug - Mon, 31 Aug
Aer Lingus Logo
07:30 - 17:10
SNN
-
SEA
17h 40m
2 stops
Aer Lingus Logo
19:10 - 20:35
SEA
-
SNN
17h 25m
2 stops
€849Aer 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 €605 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 €605.

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 June, when tickets cost €285 (return) on average. On the other hand, the most expensive months are March and February, when the average cost of round-trip tickets is €455 and €453 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 €772 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 €772.

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 2 weeks before departure, which saves you about 17% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight€322
Best time to beat the crowds (1% less expensive on average)
Most popular time to fly and prices are also 14% 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 Sunday when return tickets can be as cheap as €703. On the other hand, the most expensive day to fly is Tuesday, when return prices are €827 on average.

Top tips for finding cheap flights to Washington

  • Looking for cheap airfare to Washington? 25% of our users found return tickets to Washington for the following prices or less: From Dublin €678
  • 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.
7.3
Aer LingusOverall score based on 1603 reviews
7.2Comfort
7.0Entertainment
6.7Food
7.4Boarding
8.1Crew
Airline reviews

Boarding was fine, difficult to understand the guy over the speaker though so we were unsure when exactly to board until they updated the monitor by the gate. Flight itself was fine, nice flight attendants, seats were comfortable enough, good selection of entertainment on the screens. Other airlines at a similar price point have included wifi though, at a minimum messaging, for free, so that was a little disappointing to not have that. But otherwise fine. Food was pretty decent, nice hot meal, good drink selection, nice snacks. Bathrooms were ok, could've been cleaned a little more often, but they were never bad.

8.0 ExcellentTim, Jun 2026
DUB - LAX
Read more Aer Lingus reviews

Boarding was fine, difficult to understand the guy over the speaker though so we were unsure when exactly to board until they updated the monitor by the gate. Flight itself was fine, nice flight attendants, seats were comfortable enough, good selection of entertainment on the screens. Other airlines at a similar price point have included wifi though, at a minimum messaging, for free, so that was a little disappointing to not have that. But otherwise fine. Food was pretty decent, nice hot meal, good drink selection, nice snacks. Bathrooms were ok, could've been cleaned a little more often, but they were never bad.

Vegetarian food option was very poor. Effectively, overcooked rice ("risotto"). Zero protein which is always disappointing with no vegetables and poorly seasoned. Basically had lots of carbs on 6-hour flight. Not acceptable for business class in 2026. Flight was otherwise very good.

Small plane. Tight seating . What can one say except that it was fast!

I sat in the first row behind first class. There was plenty of legroom. The entertainment was great. I saw two excellent movies and one episode of a sitcom. Also enjoyed the flight tracker.

OK overall. Flight was delayed Crew on flight was good

On time, only a little turbulence, very competent and caring attendants. Clear information.

Late late late. Delayed and arrived an hour late for a 1 hour 45 minute connection. Every time. Poor record for this company. I try to fly any other carrier first.

The flights are literally always delayed arriving, boarding and taking off so they are always late for the connection. I planned ahead so I was okay but many others aren't. The food was terrible. The staff was very pleasant. I appreciate boarding back to front.

The crew was friendly. The plane was comfortable. In-flight wifi didn't work well at all. The ride was quite turbulent but understandable given the weather.

My issue is with the SkyWest terminal. The flight was not listed on the main airport flight screen list, and I had to do a Google search to locate the terminal and gate. We had to ask several airport employees where to locate the phantom gate. The airport did not provide adequate signage and was confusing. When we arrived, there was one vendor providing services that quickly closed, leaving zero options for food and drink while we waited hours for our delayed flight. The crew that assisted with check-in and boarding was VERY friendly.

We paid for saga class, which is the business class for international. My seat was broken and did not recline and my monitor for in-flight entertainment was broken.

The flight itself was fine, even with a one-hour delay leaving on the Reykjavik tarmac (the lost time was made up during flight). Our experience at the Reykjavik airport on arrival was terrible due mostly to the one hour it took for passport control. Only two stations were open for our category, and the room was full with a huge crowd.

They cancelled our connecting flight resulting in another layover reaching our final destination 8 hours later than scheduled.

Awful. The Iceland airport was a complete mess. Boarding was a chaotic, the seats were awful, there was a group of rowdy 20 something men in our row hooting and hollering, ordering alcoholic drink after drink. Yelling and laughing at the top of their lungs and the crew just went along with it. Passengers complained to the men, asking if they could keep it down (it was a night time flight so people wanted to sleep). They never listened crew continued to laugh with them, flirt with them and serve them more drinks. No free food or snacks, seats were horribly uncomfortable. Worst flight I've had in a long time

The Check-in process at CDG was confusing and the crew was not helpful. But the flight was on-time and that is most important to me.

At least one soda free, felt like I was nickeled to death.

Pleasant, attentive flight attendants, but they’ve got to upgrade their seats to be a true “business class” carrier.

Friendly flight crew. Airplane (757) configured as a domestic flight (no lie-flat seats) & no advanced meal selection.

When you consider the price I ended up paying for everything. This was not a good deal! I had no idea that this airline had changed to a bargain basement no frills airline. So, it was disappointing to have to pay for every little thing. The only thing included was water and coffee. You have to pay for everything else! So I just felt nickel and dime.

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

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.