This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/4. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
17 Mar — 24 Mar1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Dublin to Seattle/Tacoma Intl are usually found in November or September, booked 42 days in advance, depart on a Friday or Tuesday and return on a Monday
Cheap flight deals from Dublin to Seattle
Enter your travel dates to find the best prices.
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Best
Direct
Last-minute
One-way
Cheapest flights from Dublin to Seattle
Explore the most affordable flight options available from Dublin to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 February 2026.
Sat 19/920:15
DUB
-
SEA
1 stop23h 20m
Multiple Airlines
Tue 29/920:20
SEA
-
DUB
1 stop12h 40m
Multiple Airlines
Deal found 15/2£340
Fri 15/509:30
DUB
-
SEA
1 stop21h 08m
Multiple Airlines
Mon 8/620:20
SEA
-
DUB
1 stop14h 20m
Multiple Airlines
Deal found 14/2£342
Mon 18/509:30
DUB
-
SEA
1 stop23h 00m
Finnair
Thu 28/513:46
SEA
-
DUB
1 stop14h 04m
Finnair
Deal found 13/2£345
Sat 10/1020:15
DUB
-
SEA
1 stop23h 20m
Multiple Airlines
Fri 23/1007:49
SEA
-
DUB
1 stop17h 56m
Multiple Airlines
Deal found 13/2£346
Thu 9/409:30
DUB
-
SEA
1 stop18h 06m
Finnair
Thu 16/407:09
SEA
-
DUB
1 stop18h 36m
Finnair
Deal found 15/2£351
Best flights from Dublin to Seattle
Discover carefully curated flight deals from Dublin to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 February 2026.
Mon 18/509:30
DUB
-
SEA
1 stop23h 00m
Finnair
Thu 28/513:46
SEA
-
DUB
1 stop14h 04m
Finnair
Deal found 13/2£345
Tue 3/313:25
DUB
-
SEA
1 stop30h 10m
Multiple Airlines
Mon 9/315:10
SEA
-
DUB
1 stop24h 45m
Multiple Airlines
Deal found 12/2£397
Fri 3/411:10
DUB
-
SEA
1 stop13h 20m
Delta
Sat 11/406:00
SEA
-
DUB
1 stop17h 55m
Delta
Deal found 13/2£400
Mon 18/505:55
DUB
-
SEA
1 stop18h 35m
KLM
Thu 28/507:15
SEA
-
DUB
1 stop18h 00m
KLM
Deal found 12/2£401
Mon 13/420:30
DUB
-
SEA
1 stop23h 05m
British Airways
Sun 19/420:20
SEA
-
DUB
1 stop15h 15m
British Airways
Deal found 12/2£402
Mon 18/505:55
DUB
-
SEA
1 stop18h 35m
Delta
Thu 28/509:34
SEA
-
DUB
2 stops19h 06m
Delta
Deal found 12/2£402
Direct flights from Dublin to Seattle
Explore direct flight options from Dublin to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 February 2026.
Mon 18/515:25
DUB
-
SEA
Nonstop9h 45m
Aer Lingus
Thu 28/519:10
SEA
-
DUB
Nonstop9h 05m
Aer Lingus
Deal found 12/2£400
Mon 18/515:25
DUB
-
SEA
Nonstop9h 45m
American Airlines
Thu 28/518:55
SEA
-
DUB
Nonstop9h 05m
American Airlines
Deal found 13/2£529
Sat 6/615:25
DUB
-
SEA
Nonstop9h 45m
Aer Lingus
Sun 14/619:10
SEA
-
DUB
Nonstop9h 05m
Aer Lingus
Deal found 15/2£548
Thu 6/815:25
DUB
-
SEA
Nonstop9h 45m
Aer Lingus
Wed 12/819:10
SEA
-
DUB
Nonstop9h 05m
Aer Lingus
Deal found 13/2£609
Tue 23/615:25
DUB
-
SEA
Nonstop9h 45m
Aer Lingus
Sat 5/919:10
SEA
-
DUB
Nonstop9h 05m
Aer Lingus
Deal found 12/2£611
Sat 6/615:25
DUB
-
SEA
Nonstop9h 45m
Multiple Airlines
Sun 14/619:10
SEA
-
DUB
Nonstop9h 05m
Multiple Airlines
Deal found 14/2£664
Mon 22/615:25
DUB
-
SEA
Nonstop9h 45m
Aer Lingus
Sat 5/919:10
SEA
-
DUB
Nonstop9h 05m
Aer Lingus
Deal found 14/2£720
Mon 22/615:25
DUB
-
SEA
Nonstop9h 45m
Iberia
Fri 4/919:10
SEA
-
DUB
Nonstop9h 05m
Iberia
Deal found 12/2£744
Fri 10/715:25
DUB
-
SEA
Nonstop9h 45m
Iberia
Mon 20/719:10
SEA
-
DUB
Nonstop9h 05m
Iberia
Deal found 15/2£745
Mon 22/615:25
DUB
-
SEA
Nonstop9h 45m
American Airlines
Sun 6/918:55
SEA
-
DUB
Nonstop9h 05m
American Airlines
Deal found 12/2£854
Last-minute flights from Dublin to Seattle
Discover last-minute flight deals from Dublin to Seattle. Data last updated 15 February 2026 and is based on user searches.
Mon 23/216:30
DUB
-
SEA
Nonstop9h 50m
Aer Lingus
Sun 8/321:05
SEA
-
DUB
Nonstop9h 05m
Aer Lingus
Deal found 13/2£372
Mon 23/217:15
DUB
-
SEA
1 stop26h 25m
Multiple Airlines
Mon 9/315:10
SEA
-
DUB
1 stop24h 45m
Multiple Airlines
Deal found 13/2£383
Mon 23/217:15
DUB
-
SEA
1 stop26h 25m
KLM
Sun 8/311:50
SEA
-
DUB
1 stop12h 55m
KLM
Deal found 13/2£384
Mon 23/205:55
DUB
-
SEA
2 stops19h 05m
Delta
Sun 8/321:45
SEA
-
DUB
1 stop27h 00m
Delta
Deal found 14/2£387
Mon 23/205:55
DUB
-
SEA
2 stops22h 49m
Delta
Mon 9/321:45
SEA
-
DUB
1 stop27h 00m
Delta
Deal found 13/2£388
Sun 1/305:55
DUB
-
SEA
2 stops22h 49m
Delta
Mon 16/309:00
SEA
-
DUB
2 stops20h 40m
Delta
Deal found 14/2£396
Mon 2/305:55
DUB
-
SEA
1 stop13h 40m
Delta
Mon 9/307:25
SEA
-
DUB
2 stops22h 15m
Delta
Deal found 15/2£385
Tue 3/305:55
DUB
-
SEA
1 stop13h 40m
Delta
Tue 17/306:00
SEA
-
DUB
2 stops19h 05m
Delta
Deal found 14/2£394
Tue 3/313:25
DUB
-
SEA
1 stop30h 10m
Multiple Airlines
Mon 9/315:10
SEA
-
DUB
1 stop24h 45m
Multiple Airlines
Deal found 12/2£397
Tue 31/309:30
DUB
-
SEA
1 stop17h 55m
Finnair
Tue 7/407:09
SEA
-
DUB
1 stop18h 36m
Finnair
Deal found 14/2£345
One-way flights from Dublin to Seattle
Search for one-way flight options from Dublin to Seattle. Find affordable one-way fares based on user searches. Data last updated 15 February 2026.
Sat 4/411:30
DUB
-
SEA
2 stops34h 49m
WestJet
Deal found 13/2£301
Sat 4/411:30
DUB
-
SEA
1 stop15h 55m
Multiple Airlines
Deal found 13/2£312
Mon 30/321:25
DUB
-
SEA
2 stops45h 15m
Multiple Airlines
Deal found 13/2£321
Tue 31/321:45
DUB
-
SEA
2 stops44h 55m
Multiple Airlines
Deal found 13/2£338
Thu 2/411:30
DUB
-
SEA
2 stops34h 49m
WestJet
Deal found 13/2£353
Fri 15/513:15
DUB
-
SEA
2 stops36h 27m
Multiple Airlines
Deal found 13/2£358
Wed 1/408:00
DUB
-
SEA
2 stops34h 40m
Multiple Airlines
Deal found 13/2£359
Wed 1/415:25
DUB
-
SEA
Nonstop9h 45m
Aer Lingus
Deal found 13/2£428
Find flight deals from Dublin to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 February 2026.
Customise your flight search to find flights from Dublin to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 February 2026.
Use the filters below to find and compare flights from Dublin to Seattle that are best for you.
Fly from
Dublin
Fly to
Seattle
Route
Depart
Return
Price
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Mon 18/5
09:30-00:30
1 stop23h 00m
Seattle/Tacoma Intl
Thu 28/5
13:46-11:50
1 stop14h 04m
£345
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Tue 3/3
13:25-11:35
1 stop30h 10m
Seattle/Tacoma Intl
Mon 9/3
15:10-22:55
1 stop24h 45m
£397
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Fri 3/4
11:10-16:30
1 stop13h 20m
Seattle/Tacoma Intl
Sat 11/4
06:00-07:55
1 stop17h 55m
£400
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Mon 18/5
05:55-16:30
1 stop18h 35m
Seattle/Tacoma Intl
Thu 28/5
07:15-09:15
1 stop18h 00m
£401
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Mon 13/4
20:30-11:35
1 stop23h 05m
Seattle/Tacoma Intl
Sun 19/4
20:20-19:35
1 stop15h 15m
£402
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Mon 18/5
05:55-16:30
1 stop18h 35m
Seattle/Tacoma Intl
Thu 28/5
09:34-12:40
2 stops19h 06m
£402
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Sat 4/4
11:30-14:19
2 stops34h 49m
£301
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Fri 15/5
10:40-19:19
1 stop16h 39m
£335
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Mon 30/3
21:55-10:40
3 stops44h 45m
£335
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Tue 31/3
06:30-10:40
3 stops36h 10m
£346
Flights are sorted by cheapest return flights first.
Deals found on 13/2
Showing 1-10 of 14 results
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Best time to book a flight from Dublin to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Dublin with our price prediction graph.
DUB-SEA
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Dublin to Seattle
Prices
Delays
More
How far ahead should I book a flight from Dublin to Seattle?
Use this chart to determine the optimal time to book a return flight from Dublin to Seattle. Price data was last updated on 13 February 2026.
Booking 42 days in advance of your planned departure date is, on average, the best time to get cheap flights from Dublin to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Dublin to Seattle?
Currently, September is the cheapest month in which you can book a flight from Dublin to Seattle (average of £341). Flying from Dublin to Seattle in July is currently the most expensive (average of £576). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost for a return flight from Dublin to Seattle?
How often are flights from Dublin to Seattle delayed?
About 9% of weekly flights between Dublin and Seattle have experienced delays in the past year, with the average delay time being 163 minutes.
What is the most punctual flight time for Dublin to Seattle flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Dublin to Seattle flights?
Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 9% of flights being delayed.
What’s the top stopover airport for flights from Dublin to Seattle?
Share of one-stop return flights from Dublin to Seattle chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Reykjavik (KEF) – chosen by Cheapflights users on 62% of one-stop itineraries from Dublin to Seattle on Cheapflights.
What’s the cheapest stopover airport for flights from Dublin to Seattle?
Average return fare for one-stop flights from Dublin to Seattle, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Copenhagen (CPH) is the most affordable one-stop option, with an average return flight price of £561.
What’s the fastest stopover option from Dublin to Seattle?
Shortest average travel time for one-stop one-way flights from Dublin to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 13h 23m.
Which airport typically offers the quickest stopover for flights from Dublin to Seattle?
Average stopover duration for one-stop one-way flights from Dublin to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 1h 54m.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 15 February 2026.
Read through reviews of airlines operating flights from Dublin to Seattle, such as Scandinavian Airlines, American Airlines, andAer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Very bad experience, my baggage didn’t arrive resulting In lots of future flight and hotel cancellation. I won’t recommend this flight to anyone.
Related info for your journey
Find useful and relevant information for your journey from Dublin to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airports do I use to fly from Dublin to Seattle?
If you book a flight from Dublin to Seattle, you will be flying from Dublin to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from Dublin (DUB) take 9h 45m for a nonstop flight. There are 2 flights from Dublin to Seattle per day from 5 airlines.
How popular is this Dublin to Seattle flight route?
This flight path from Dublin to Seattle/Tacoma Intl was viewed by 68 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
How long is the flight from Dublin to Seattle?
For as low as £345, Finnair can have you in Seattle from Dublin in 23h. There are 4523 mi between Dublin and Seattle.
What are the cheapest airlines flying from Dublin to Seattle round-trip?
According to our current data, Scandinavian Airlines (£314), British Airways (£375), and Aer Lingus (£403) offers the cheapest pricing from Dublin to Seattle. You may be able to fly from Dublin to Seattle for 41% less than the average price by searching for these airlines.
What are the most reliable airlines from Dublin to Seattle?
Consider American Airlines (78%), Aer Lingus (78%) or British Airways (78%) when booking your flight. These represent the most reliable airlines when flying from Dublin to Seattle.
What are the cheapest flights from Dublin to Seattle?
Looking for the cheapest flight from Dublin to Seattle? While on average our users pay £590, our data indicates the cheapest price to be £402. The most popular route (Dublin - Seattle/Tacoma Intl), is priced around £472.
Can I find deals for business class flights from Dublin to Seattle?
Yes. Cheapflights offers flight deals from Dublin to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Dublin to Seattle?
Currently, September is the cheapest month in which you can book a flight from Dublin to Seattle (average of £341). Flying from Dublin to Seattle in July is currently the most expensive (average of £576). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 15 February 2026.
Discover the top 5 airlines that operate flights from Dublin to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 February 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Dublin to Seattle?
Deals for Dublin to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Dublin to Seattle?
Cheapflights simply makes it quick and affordable to book flights from Dublin to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Dublin to Seattle with no change fees?
Yes! Cheapflights helps users easily find flights from Dublin to Seattle with no change fees.
Can Cheapflights notify me if prices for flights from Dublin to Seattle become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!
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