This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
10 Dec — 17 Dec1
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 April or May, booked 60 days in advance, depart on a Wednesday or Friday and return on a Tuesday
Cheap flight deals from Dublin to Seattle
Enter your travel dates to find the best prices.
Cheapest
Best
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 10 November 2026.
Sat 21/1110:10 -
2 stops19h 54m
Mon 7/1207:15 -
2 stops27h 05m
Deal found 5/11£460
Sat 21/1111:30 -
1 stop13h 30m
Mon 7/1214:35 -
1 stop11h 40m
Deal found 5/11£465
Tue 24/1119:05 -
2 stops36h 52m
Tue 1/1207:20 -
2 stops27h 00m
Deal found 7/11£470
Thu 3/1219:05 -
2 stops36h 50m
Thu 10/1210:39 -
2 stops23h 41m
Deal found 5/11£478
Thu 12/1119:05 -
2 stops35h 55m
Fri 27/1107:27 -
2 stops26h 53m
Deal found 5/11£498
Fri 13/1119:05 -
2 stops35h 55m
Fri 27/1107:27 -
2 stops26h 53m
Deal found 6/11£505
Wed 2/1220:40 -
1 stop22h 45m
Wed 20/118:45 -
1 stop13h 50m
Deal found 5/11£521
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 10 November 2026.
Sun 28/312:15 -
1 stop16h 25m
Thu 22/415:40 -
1 stop11h 25m
Deal found 8/11£455
Wed 2/1219:05 -
2 stops35h 50m
Wed 20/107:15 -
2 stops27h 05m
Deal found 5/11£474
Sat 21/1109:30 -
2 stops17h 33m
Mon 7/1207:00 -
2 stops16h 30m
Deal found 7/11£554
Wed 16/1211:55 -
1 stop19h 00m
Mon 28/1215:25 -
1 stop19h 00m
Deal found 9/11£571
Thu 25/314:25 -
1 stop34h 30m
Tue 20/415:40 -
1 stop11h 25m
Deal found 8/11£456
Sat 21/1119:05 -
2 stops34h 59m
Mon 7/1206:00 -
2 stops28h 20m
Deal found 6/11£498
Thu 25/314:25 -
1 stop34h 30m
Fri 23/419:00 -
1 stop32h 05m
Deal found 8/11£458
Sun 28/312:15 -
1 stop13h 40m
Tue 20/415:40 -
1 stop11h 25m
Deal found 6/11£459
Wed 2/1210:40 -
3 stops21h 04m
Wed 20/108:30 -
2 stops15h 40m
Deal found 5/11£558
Tue 8/1219:05 -
2 stops35h 50m
Tue 15/1215:21 -
2 stops36h 24m
Deal found 9/11£534
Tue 8/1210:40 -
3 stops21h 04m
Tue 15/1206:15 -
2 stops17h 15m
Deal found 9/11£577
Last-minute flights from Dublin to Seattle
Discover last-minute flight deals from Dublin to Seattle. Data last updated 10 November 2026 and is based on user searches.
Thu 12/1119:05 -
2 stops35h 55m
Fri 27/1107:27 -
2 stops26h 53m
Deal found 5/11£498
Fri 13/1119:05 -
2 stops35h 55m
Fri 27/1107:27 -
2 stops26h 53m
Deal found 6/11£505
Sat 21/1110:10 -
2 stops19h 54m
Mon 7/1207:15 -
2 stops27h 05m
Deal found 5/11£460
Sat 21/1111:30 -
1 stop13h 30m
Mon 7/1214:35 -
1 stop11h 40m
Deal found 5/11£465
Tue 24/1119:05 -
2 stops36h 52m
Tue 1/1207:20 -
2 stops27h 00m
Deal found 7/11£470
Wed 2/1220:40 -
1 stop22h 45m
Wed 20/118:45 -
1 stop13h 50m
Deal found 5/11£521
Thu 3/1219:05 -
2 stops36h 50m
Thu 10/1210:39 -
2 stops23h 41m
Deal found 5/11£478
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 10 November 2026.
Thu 28/105:45 -
1 stop14h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 9/11£325
Fri 22/105:45 -
1 stop14h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 6/11£326
Sun 7/205:45 -
1 stop14h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 9/11£327
Fri 15/105:45 -
1 stop14h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 5/11£328
Mon 11/107:10 -
2 stops38h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 5/11£335
Sat 16/105:45 -
2 stops17h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 5/11£338
Mon 8/205:45 -
2 stops17h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 9/11£341
Wed 13/105:45 -
1 stop14h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 5/11£354
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 10 November 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 7,457,451 searches. Data last updated 10 November 2026.
Use the filters below to find and compare flights from Dublin to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Thu 28/1
05:45-11:50
1 stop14h 05m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£325
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Wed 17/2
05:45-20:41
2 stops22h 56m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£329
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Fri 22/1
05:45-18:56
2 stops21h 11m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£330
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Fri 15/1
05:45-18:56
2 stops21h 11m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£333
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Wed 13/1
10:25-13:50
2 stops35h 25m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£335
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Wed 13/1
05:45-11:50
1 stop14h 05m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£354
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Mon 22/3
05:45-12:35
1 stop13h 50m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£356
Fastest return journey
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Sat 1/5
11:10-16:20
1 stop13h 10m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£357
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Sun 10/1
05:45-11:50
1 stop14h 05m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£357
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Wed 21/4
08:55-16:20
1 stop15h 25m
Seattle/Tacoma Intl
Wed 31/12
00:00-09:00
Nonstop0h 00m
£357
Flights are sorted by cheapest return flights first.
Deals found on 8/11
Showing 1-10 of 21 resultsSorted by cheapest first
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2
3
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?
Booking 57 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, April is the cheapest month in which you can book a flight from Dublin to Seattle (average of £450). Flying from Dublin to Seattle in July is currently the most expensive (average of £776). 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?
Airfare is below average for this route at the moment.
Dublin to Seattle flights typically cost between £484 and £559 in March.The cheapest return price found within the last 5 days was £445 on Icelandair (25 Mar–22 Apr).
How often are flights from Dublin to Seattle delayed?
About 12% 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 12% 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.
London (LHR) – chosen by Cheapflights users on 56% 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.
Reykjavik (KEF) is the most affordable one-stop option, with an average return flight price of £521.
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 Reykjavik (KEF) have the shortest average one-way travel time for one-stop routes: 12h 17m.
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 Reykjavik (KEF) offer the fastest connection on this route, with an average stopover time of 1h 49m.
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 10 November 2026.
Read through reviews of airlines operating flights from Dublin to Seattle, such as Aer Lingus and Icelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.
Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.
Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.
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.
How popular is this Dublin to Seattle flight route?
This flight path from Dublin to Seattle/Tacoma Intl was viewed by 23 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 £455, Icelandair can have you in Seattle from Dublin in 16h 25m. There are 4523 mi between Dublin and Seattle. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Dublin to Seattle round-trip?
According to our current data, Icelandair (£342), and Aer Lingus (£410) offers the cheapest pricing from Dublin to Seattle. You may be able to fly from Dublin to Seattle for 40% less than the average price by searching for these airlines.
What are the most reliable airlines from Dublin to Seattle?
Consider American Airlines (70%), Aer Lingus (70%) or Iberia (70%) when booking your flight. These represent the most reliable airlines when flying from Dublin to Seattle.
Can I find deals for flights from Dublin to Seattle that include hotel bookings?
Yes. In addition to deals on Dublin to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Dublin to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Seattle.
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, April is the cheapest month in which you can book a flight from Dublin to Seattle (average of £450). Flying from Dublin to Seattle in July is currently the most expensive (average of £776). 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 10 November 2026.
Discover the top 2 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 7,457,451 searches. Data last updated 10 November 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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