This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
3 Dec — 10 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 February or November, booked 56 days in advance, depart on a Friday or Tuesday and return on a Monday
Find flight deals from Dublin to Seattle
Enter your travel dates to find the best prices.
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 3 November 2025.
Sun 9/1105:55DUB - SEA
1 stop13h 50mDelta
Mon 24/1114:05SEA - DUB
1 stop17h 40mDelta
Deal found 2/11£381
Fri 5/1211:30DUB - SEA
1 stop13h 30mIcelandair
Sun 7/1214:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 1/11£382
Sat 22/1105:55DUB - SEA
1 stop13h 50mDelta
Sat 29/1109:28SEA - DUB
1 stop14h 17mDelta
Deal found 3/11£383
Sat 22/1105:55DUB - SEA
1 stop13h 50mDelta
Sat 13/1209:25SEA - DUB
1 stop14h 20mDelta
Deal found 1/11£384
Sat 22/1105:55DUB - SEA
1 stop13h 50mDelta
Sun 30/1107:15SEA - DUB
2 stops21h 25mDelta
Deal found 3/11£385
Fri 14/1105:55DUB - SEA
1 stop13h 50mDelta
Fri 28/1106:00SEA - DUB
2 stops22h 40mDelta
Deal found 1/11£387
Thu 13/1105:55DUB - SEA
2 stops22h 41mDelta
Sat 22/1122:05SEA - DUB
1 stop27h 15mDelta
Deal found 2/11£388
Mon 10/1105:55DUB - SEA
2 stops17h 40mKLM
Sun 23/1107:15SEA - DUB
1 stop16h 30mKLM
Deal found 1/11£388
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 3 November 2025.
Wed 11/211:30DUB - SEA
1 stop13h 30mIcelandair
Sun 22/214:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 2/11£360
Thu 12/213:10DUB - SEA
1 stop30h 20mBritish Airways
Mon 23/218:50SEA - DUB
1 stop14h 15mBritish Airways
Deal found 2/11£376
Tue 10/211:30DUB - SEA
1 stop13h 30mIcelandair
Fri 20/214:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 2/11£376
Thu 12/208:50DUB - SEA
1 stop16h 05mBritish Airways
Sat 21/218:50SEA - DUB
1 stop29h 05mBritish Airways
Deal found 2/11£376
Wed 11/211:30DUB - SEA
1 stop13h 30mIcelandair
Fri 20/214:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 2/11£376
Sun 15/211:30DUB - SEA
1 stop13h 30mIcelandair
Sun 22/214:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 2/11£376
Mon 9/211:30DUB - SEA
1 stop13h 30mIcelandair
Fri 20/214:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 2/11£376
Sat 14/211:30DUB - SEA
1 stop13h 30mIcelandair
Sun 22/214:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 2/11£376
Sat 14/211:30DUB - SEA
1 stop13h 30mIcelandair
Mon 23/214:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 2/11£376
Fri 13/211:30DUB - SEA
1 stop13h 30mIcelandair
Fri 20/214:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 2/11£376
Sat 14/211:30DUB - SEA
1 stop13h 30mIcelandair
Wed 25/214:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 2/11£376
Mon 9/211:30DUB - SEA
1 stop13h 30mIcelandair
Tue 24/214:35SEA - DUB
1 stop11h 40mIcelandair
Deal found 2/11£376
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 3 November 2025.
Sun 15/216:30DUB - SEA
Nonstop9h 50mAer Lingus
Wed 25/220:05SEA - DUB
Nonstop9h 05mAer Lingus
Deal found 2/11£734
Sun 15/216:30DUB - SEA
Nonstop9h 50mAer Lingus
Sun 22/220:05SEA - DUB
Nonstop9h 05mAer Lingus
Deal found 2/11£744
Sun 15/216:30DUB - SEA
Nonstop9h 50mAer Lingus
Mon 23/220:05SEA - DUB
Nonstop9h 05mAer Lingus
Deal found 2/11£769
Sun 15/216:30DUB - SEA
Nonstop9h 50mAmerican Airlines
Fri 20/220:05SEA - DUB
Nonstop9h 05mAmerican Airlines
Deal found 2/11£838
Last-minute flights from Dublin to Seattle
Discover last-minute flight deals from Dublin to Seattle. Data last updated 3 November 2025 and is based on user searches.
Sun 9/1105:55DUB - SEA
1 stop13h 50mDelta
Mon 24/1114:05SEA - DUB
1 stop17h 40mDelta
Deal found 2/11£381
Mon 10/1105:55DUB - SEA
2 stops17h 40mKLM
Sun 23/1107:15SEA - DUB
1 stop16h 30mKLM
Deal found 1/11£388
Thu 13/1105:55DUB - SEA
2 stops22h 41mDelta
Sat 22/1122:05SEA - DUB
1 stop27h 15mDelta
Deal found 2/11£388
Fri 14/1105:55DUB - SEA
1 stop13h 50mDelta
Fri 28/1106:00SEA - DUB
2 stops22h 40mDelta
Deal found 1/11£387
Sat 22/1105:55DUB - SEA
1 stop13h 50mDelta
Sat 29/1109:28SEA - DUB
1 stop14h 17mDelta
Deal found 3/11£383
Sat 22/1105:55DUB - SEA
1 stop13h 50mDelta
Sun 30/1107:15SEA - DUB
2 stops21h 25mDelta
Deal found 3/11£385
Sat 22/1108:50DUB - SEA
2 stops21h 33mDelta
Sat 13/1209:25SEA - DUB
1 stop14h 20mDelta
Deal found 3/11£389
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 3 November 2025.
Thu 9/411:30DUB - SEA
2 stops27h 13mWestJet
Deal found 1/11£414
Tue 30/1215:15DUB - SEA
1 stop25h 39mMultiple Airlines
Deal found 1/11£438
Mon 23/315:10DUB - SEA
1 stop33h 45mBritish Airways
Deal found 2/11£476
Sun 22/311:30DUB - SEA
1 stop13h 30mIcelandair
Deal found 2/11£482
Tue 25/1107:35DUB - SEA
1 stop17h 20mAer Lingus
Deal found 2/11£533
Wed 26/1106:40DUB - SEA
1 stop18h 15mAer Lingus
Deal found 2/11£538
Mon 1/1210:45DUB - SEA
1 stop32h 45mBritish Airways
Deal found 2/11£555
Wed 31/1205:55DUB - SEA
1 stop13h 55mKLM
Deal found 2/11£596
Thu 1/109:45DUB - SEA
1 stop14h 06mDelta
Deal found 2/11£604
Mon 1/1205:55DUB - SEA
2 stops17h 40mDelta
Deal found 2/11£634
Wed 26/1111:30DUB - SEA
2 stops17h 08mIcelandair
Deal found 2/11£705
Cheap 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 3 November 2025.
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 3 November 2025.
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
Wed 11/2
11:30-17:00
1 stop13h 30m
Seattle/Tacoma Intl
Sun 22/2
14:35-10:15
1 stop11h 40m
£360
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Thu 12/2
13:10-11:30
1 stop30h 20m
Seattle/Tacoma Intl
Mon 23/2
18:50-17:05
1 stop14h 15m
£376
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Tue 10/2
11:30-17:00
1 stop13h 30m
Seattle/Tacoma Intl
Fri 20/2
14:35-10:15
1 stop11h 40m
£376
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Thu 12/2
08:50-16:55
1 stop16h 05m
Seattle/Tacoma Intl
Sat 21/2
18:50-07:55
1 stop29h 05m
£376
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Wed 11/2
11:30-17:00
1 stop13h 30m
Seattle/Tacoma Intl
Fri 20/2
14:35-10:15
1 stop11h 40m
£376
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Sun 15/2
11:30-17:00
1 stop13h 30m
Seattle/Tacoma Intl
Sun 22/2
14:35-10:15
1 stop11h 40m
£376
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Mon 9/2
11:30-17:00
1 stop13h 30m
Seattle/Tacoma Intl
Fri 20/2
14:35-10:15
1 stop11h 40m
£376
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Sat 14/2
11:30-17:00
1 stop13h 30m
Seattle/Tacoma Intl
Sun 22/2
14:35-10:15
1 stop11h 40m
£376
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Sat 14/2
11:30-17:00
1 stop13h 30m
Seattle/Tacoma Intl
Mon 23/2
14:35-10:15
1 stop11h 40m
£376
DublinSeattle
DUB - SEA
DUBSEA
Dublin
Fri 13/2
11:30-17:00
1 stop13h 30m
Seattle/Tacoma Intl
Fri 20/2
14:35-10:15
1 stop11h 40m
£376
Flights are sorted by cheapest return flights first.
Deals found on 1/11
Showing 1-10 of 22 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.
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 31 October 2025.
Booking 56 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, March is the cheapest month in which you can book a flight from Dublin to Seattle (average of £365). Flying from Dublin to Seattle in July is currently the most expensive (average of £602). 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.
What is the cheapest time of day to fly from DUB to SEA?
Find hourly flight availability from Dublin to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 November 2025.
When flying from Dublin to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 19% versus a flight in the afternoon.
How much does it cost for a return flight from Dublin to Seattle?
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 129 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?
Wednesday 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, American Airlines 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.
Reykjavik (KEF) – chosen by Cheapflights users on 62% of one-stop itineraries from Dublin to Seattle on Cheapflights.
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.
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 3 November 2025.
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.
Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
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 50m for a nonstop flight. There is 1 flight 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 80 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 £360, Icelandair can have you in Seattle from Dublin in 13h 30m. 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 (£326), British Airways (£356), and Aer Lingus (£405) offers the cheapest pricing from Dublin to Seattle. You may be able to fly from Dublin to Seattle for 39% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Dublin to Seattle one-way?
To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at £414. British Airways flights start at £476 while deals on Icelandair start at £482 one-way.
What are the most reliable airlines from Dublin to Seattle?
Consider British Airways (67%), American Airlines (67%) or Aer Lingus (59%) 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 £789, our data indicates the cheapest price to be £565. The most popular route (Dublin - Seattle/Tacoma Intl), is priced around £385.
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, March is the cheapest month in which you can book a flight from Dublin to Seattle (average of £365). Flying from Dublin to Seattle in July is currently the most expensive (average of £602). 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 3 November 2025.
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 3 November 2025.
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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