$368 Find Cheap Flights from Dublin 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 Dublin to Washington departing on 5/19. 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 in flight searches from Dublin to Washington, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Dublin to Washington, as well as popular online travel agencies
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Cheap Flights from Dublin to Washington

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Seattle
Seattle1 stop$571
Spokane
Spokane3 stops$1,077
Seattle
Seattle1 stop$571
Spokane
Spokane3 stops$1,077

Book Cheap Dublin to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dublin 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 round-trip flight deals from Dublin to Washington

Wed, Jun 24 - Tue, Jun 30
Finnair Logo
9:30 am - 12:41 am
DUB
-
SEA
23h 11m
1 stop
Finnair Logo
10:27 am - 11:50 am
SEA
-
DUB
17h 23m
1 stop
$571Finnair
Fri, May 22 - Wed, Jun 3
Aer Lingus Logo
3:25 pm - 5:10 pm
DUB
-
SEA
9h 45mnonstop
Aer Lingus Logo
7:10 pm - 12:20 pm
SEA
-
DUB
9h 10mnonstop
$586Aer Lingus
Fri, May 22 - Wed, Jun 3
Aer Lingus Logo
3:25 pm - 5:10 pm
DUB
-
SEA
9h 45mnonstop
Aer Lingus Logo
7:10 pm - 12:20 pm
SEA
-
DUB
9h 10mnonstop
$587Aer Lingus
Thu, Jun 25 - Tue, Jun 30
Multiple Airlines Logo
9:30 am - 12:41 am
DUB
-
SEA
23h 11m
1 stop
Multiple Airlines Logo
1:30 pm - 9:40 am
SEA
-
DUB
12h 10m
1 stop
$598Multiple Airlines
Sat, May 23 - Sat, Jun 6
British Airways Logo
6:45 pm - 11:35 am
DUB
-
SEA
24h 50m
1 stop
British Airways Logo
8:20 pm - 7:30 pm
SEA
-
DUB
15h 10m
1 stop
$601British Airways
Tue, May 26 - Mon, Jun 8
British Airways Logo
8:25 pm - 11:35 am
DUB
-
SEA
23h 10m
1 stop
British Airways Logo
8:20 pm - 12:05 pm
SEA
-
DUB
31h 45m
1 stop
$602British Airways
Fri, May 22 - Sat, Jun 6
WestJet Logo
1:00 pm - 1:50 pm
DUB
-
PDX
32h 50m
1 stop
WestJet Logo
2:30 pm - 10:50 am
PDX
-
DUB
12h 20m
1 stop
$740WestJet
Mon, Sep 14 - Mon, Sep 28
Multiple Airlines Logo
10:40 am - 1:50 pm
DUB
-
PDX
59h 10m
2 stops
Multiple Airlines Logo
7:45 pm - 7:45 am
PDX
-
DUB
28h 00m
1 stop
$744Multiple Airlines
Tue, Aug 11 - Tue, Aug 25
WestJet Logo
12:15 pm - 1:50 pm
DUB
-
PDX
33h 35m
2 stops
WestJet Logo
2:30 pm - 8:40 am
PDX
-
DUB
34h 10m
2 stops
$786WestJet
Fri, May 22 - Sat, Jun 6
JetBlue Logo
10:40 am - 1:10 pm
DUB
-
PDX
34h 30m
1 stop
JetBlue Logo
2:30 pm - 8:20 am
PDX
-
DUB
33h 50m
1 stop
$814JetBlue
Booking Insights

KAYAK's insights & trends for Dublin to Washington flights

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

How much is a round-trip flight from Dublin to State of Washington?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Dublin to State of Washington departing in June.

What is the cheapest Dublin to Washington flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Washington from Dublin found in the last 72 hours was to Seattle, at $600 round-trip. The most popular route is from Dublin (DUB) to Seattle (SEA), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $600.

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

The average price for all round-trip flights from Dublin 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 round-trip flights cost $702 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 $702.

Can I save money by flying with a layover from Dublin to Washington?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $618, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Dublin 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 Dublin to Washington is September, when tickets cost $429 (return) on average. On the other hand, the most expensive months are July and April, when the average cost of round-trip tickets is $750 and $549 respectively.

What’s the cheapest day of the week to fly from Dublin to Washington?

The average price of all round-trip flights from Dublin to Washington clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Washington on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Dublin to Washington. For your return ticket, we recommend flying on a Wednesday and avoiding Saturdays for the best deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Dublin 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 Dublin 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 10 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$368
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Dublin to Portland

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from Dublin 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 Dublin to Washington.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Dublin 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 Dublin 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 Dublin 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 Dublin 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 Dublin to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Dublin to Washington

 
See real verified KAYAK customer reviews for airlines flying from Dublin to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. 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 Dublin 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 1536 reviews
8.1Crew
7.2Comfort
6.6Food
7.4Boarding
7.0Entertainment
Airline reviews

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.

10.0 ExcellentAnthon, Apr 2026
DUB - BOS
Read more Aer Lingus reviews

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.

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

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.

On a four hour delayed flight now on seats back end of the plane instead front-

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.

Checked in ok for 3 flights at the airport check-in desk, but apparently I was not checked in to my connecting flights even though I was assured that I was and had seats on all 3 flights. Aer Lingus departure was also delayed for 1.5 hours which gave no time to collect bags to go through customs.

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!

Everything you need to know for your flight from Dublin to Washington

Information on your arrival and departure airports