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Find cheap flights to Seattle from €380

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Seattle departing on 25/5. 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
0 bags
Mon 27/5
Mon 3/6

Search hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Seattle, 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 Seattle, as well as popular online travel agencies
In the last 7 days, travellers have searched 44,335,567 times on KAYAK, and here's why:

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Cheap flight deals to Seattle

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights to Seattle 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 and deals for you by selecting your travel dates.
Choose your dates
12:15 - 20:35DUB-SEA
16h 20m1 stop
18:55 - 11:05SEA-DUB
32h 10m1 stop
€503Icelandair
Find Deal
Thu, 23 May - Thu, 30 May
14:50 - 11:20DUB-SEA
28h 30m1 stop
23:00 - 11:05SEA-DUB
28h 05m1 stop
€520Icelandair
Find Deal
Mon, 27 May - Fri, 7 Jun
12:15 - 17:40DUB-SEA
13h 25m1 stop
18:55 - 13:50SEA-DUB
10h 55m1 stop
€535Icelandair
Find Deal
Tue, 4 Jun - Tue, 11 Jun
08:55 - 16:35DUB-SEA
15h 40m1 stop
07:15 - 08:45SEA-DUB
17h 30m1 stop
€575KLM
Find Deal
Mon, 3 Jun - Mon, 24 Jun
12:50 - 22:23SNN-SEA
17h 33m1 stop
22:55 - 10:50SEA-SNN
27h 55m1 stop
€630KLM
Find Deal
Tue, 3 Sep - Wed, 11 Sep
16:15 - 17:56DUB-SEA
9h 41mdirect
19:40 - 12:40SEA-DUB
9h 00mdirect
€670Aer Lingus
Find Deal
Fri, 17 May - Fri, 24 May
09:30 - 16:08SNN-SEA
14h 38m1 stop
00:25 - 07:30SEA-SNN
23h 05m1 stop
€677United Airlines
Find Deal
Mon, 27 May - Thu, 6 Jun
16:15 - 17:56DUB-SEA
9h 41mdirect
07:00 - 14:30SEA-DUB
23h 30m1 stop
€738Aer Lingus
Find Deal
Fri, 24 May - Fri, 31 May
11:35 - 21:20DUB-SEA
17h 45m2 stops
00:25 - 11:10SEA-DUB
26h 45m1 stop
€751United Airlines
Find Deal
Mon, 27 May - Thu, 6 Jun
11:45 - 20:43DUB-SEA
16h 58m1 stop
23:59 - 05:00SEA-DUB
21h 01m1 stop
€842British Airways
Find Deal
Fri, 16 Aug - Sat, 24 Aug

Flights to Seattle - Travel Insights & Trends

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

What is the cheapest day to fly to Seattle?

The average price of all flights to Seattle clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Seattle is Tuesday where tickets can be as cheap as €657. On the other hand, the most expensive day to fly is Sunday, where prices are €874 on average.

What is the cheapest month to fly to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Seattle, 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 to Seattle is February, where tickets cost €459 on average for one-way flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from Ireland is €964 and €824 respectively. For return trips, the best month to travel is February with an average price of €459.

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

The average price for all flights to Seattle depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Seattle is generally in the morning, when flights cost €642 on average. The most expensive time of day to fly to Seattle is generally in the evening, which is peak travel time and where the average cost of a ticket is €760.

How far in advance should I book a flight to Seattle?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 85 days before departure.

Which airline offers the most flights to Seattle?

Of the 10 airlines that fly to Seattle, Alaska Airlines offers the most flights, with around 3,426 per week, followed by Delta with 1,543 flights per week.

How long is the flight to Seattle?

The duration of your flight to Seattle depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular routes to Seattle on KAYAK are from Dublin, which takes 9h 41m, Cork, which takes 25h 00m, and Shannon, which takes 28h 30m.

How many direct flights to Seattle are there each day?

There are around 2 direct flights from within Ireland to Seattle every day. Most flights depart in the afternoon, with 15:00 the most common departure time and 100% of flights departing in the afternoon.

How many direct flights to Seattle are there each week?

Each week there are around 11 direct flights from within Ireland to Seattle. The most common day for departures is Wednesday, with 18% of flights taking off on this day.

How many long-haul flights are there to Seattle each week?

There are not any medium-haul (3-6 hour flight duration) or short-haul (up to 3 hour flight duration) flights to Seattle. Instead, there are 11 long-haul flights (6-12 hour flight duration), with the most arriving from Dublin.

How many cities have direct flights to Seattle?

From Ireland, there are direct flights to Seattle from 1 city. This city is Dublin and there are 11 direct flights each week.

Good to know

Low season

February

High season

September

Cheapest flight

€380
Best time to beat the crowds (29% less expensive on average)
Most popular time to fly and prices are also 6% lower on average.
Flight from Dublin to Seattle

When to book flights to Seattle

Are your dates flexible? Find out the best times to travel to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to Seattle based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Seattle flights

  • How far is Seattle from central Seattle?

    Seattle is 18 km from the centre of Seattle.

  • What is the name of Seattle’s airport?

    When flying to Seattle, you'll arrive at Seattle (SEA). The airport is also known as Seattle-Tacoma Intl, Seattle/Tacoma, or Seattle/Tacoma Intl.

  • How much is a flight to Seattle?

    On average, a flight to Seattle costs €763. The cheapest price found on KAYAK in the last 2 weeks cost €278 and departed from Dublin Airport.

  • How does KAYAK find such low prices on flights to Seattle?

    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 to Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Seattle?

    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 to Seattle 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 to Seattle?

    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 to Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Seattle

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Seattle flight deals.

Prefer to fly direct to Seattle/Tacoma Intl?

Find which airlines fly direct to Seattle/Tacoma Intl, which days they fly and book direct flights.

Direct departures

Ireland to Seattle/Tacoma Intl

Monday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Tuesday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Wednesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Thursday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Friday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Saturday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Sunday

ANA, Aer Lingus, Aeromexico, +59 more

ANA, Aer Lingus, +60 more

See more direct flights

Direct returns

Seattle/Tacoma Intl to Ireland

Monday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Tuesday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Wednesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Thursday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Friday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Saturday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Sunday

ANA, Aer Lingus, Aeromexico, +59 more

ANA, Aer Lingus, +60 more

See more direct flights
See more direct flights

Top 4 airlines flying to Seattle

 
See real verified KAYAK customer reviews for airlines flying to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Seattle. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Seattle? 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.
7.4
United AirlinesOverall score based on 11228 reviews
7.7boarding
6.7food
7.1entertainment
7.2comfort
8.1crew
Airline reviews

United business class just sucks. There’s no reason to go business class with United. This time there were no screens. Boarding is ridiculous, always. The pull-out table was broken. The female crew members were very nice. The male crew member liked to listen to himself talk on the intercom. And gives his stupid comments on almost anything.

2.0 MediocreConstantin, Apr 2024PUJ - EWR
Read more about United Airlines reviews

United business class just sucks. There’s no reason to go business class with United. This time there were no screens. Boarding is ridiculous, always. The pull-out table was broken. The female crew members were very nice. The male crew member liked to listen to himself talk on the intercom. And gives his stupid comments on almost anything.

The WiFi didn’t work and the seats are too close together. Very uncomfortable.

Two flights,both poor. No entertainment. Cramped and uncomfortable seats, little space, the rest was OK. Staff were acceptable good.

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

We were delayed an hour leaving Munich (No fault of the crew). They kept us posted on the status so we knew what was going on, but as a result we missed our connection in Chicago and the communication on connecting flights was pretty poor as we disembarked. It was already stressful and some of that could have been reduced by better communications about where to find transfers, etc.

One problem, but a serious one - the plane is built with electric windows that tint dark to reduce light. Sitting next to the window is VERY UNCOMFORTABLE as it emits so much HEAT in the face when tinted.

So so. Terrible aircraft choice for that leg of the flight.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Terrible. 2 hour delay. Sat on the tarmac. Missed my connecting flight. Had to ARGUE with Customer service to get a hotel and food. Terrible experience with my loyal carrier

Short flight so not much to rate. Surprised I had to pay for a soda.

the room on the plane was good but that is because flight not sold the other three seat and I had room. the food in terrible.

First the price I paid was excellent, my flight was full, but my seat was roomy. The one downside to the experience was they had games on the entertainment console. The guy behind me poked at my head about half the flight. I hope they get rid of this feature.

Very good need to offer better choice of food for business

They should. Heck planes more often not when they are suppose to be leaving causing delays

Crew was fantastic got lovely food and plenty of water. Entertainment was good. Never had to ask for anything. Left on time and got to Seattle early. Luggage did not take long either.

Always find Aer Lingus reliable and good value for money. Food on this flight was pretty basic and the headphone Jack at my seat only worked for one ear. Little disappointed in movie selection, limited on recent releases. Staff are okay - but I always buy a cheap ticket so not like I expect first class opulence anyway!!!

Boarding was so quick, flight was ahead of time which is great and the pilot spoke clearly and was letting people know everything, amazing, love travelling with you 😊

Great hospitality and service! Seats are better cushioned then some

Great hospitality and service! Seats could always be cushioned better.

So Iceland Air is one step above Spirit Airlines. They do not feed you unless you pay for it or are in Saga Class. So, bring your food. They have a drink service, but it's in a large Dixie cup. Ask for the can, that is the only way you'll get a real drink. Also, we missed our connecting flight so they put us up in a flea-bag motel. Don't get me wrong, the staff was nice and friendly, however, there was no shower gel or shampoo in the hotel. We have to go to the corner store to pick some up. The room was not in great shape. Holes in the bathroom, a badly repaired ceiling in the room. The window was warn out. So, you get the just of how bad it was.

Food and staff were excellent. Seats on Saga (business class) are comparable to domestic first class of US Airlines, regarding space and recline. Entertainment options had little international component.

Flight delayed Delay to the gate upon arrival Baggage took more than an hour so we missed our connecting!!! Terrible experience!

There is no food without paying $. Only soft drinks are included in your fare.

Some drinks and basic snack will be good. Water should be served at least once an hour. Blankets for folks who might be cold.

Pros: "Flight was relatively empty. Professional crew, comfortable seats"
Cons: "I think they skipped me with food service. Checking up on passengers who may have been sleeping would be nice. Headphones need to be purchased. Limited entertainment options."
Cons: "Communication about international COVID requirements before the day of departure."
Pros: "My seat cushion was out of alignment so not great. But I like the two side seat configuration."
Cons: "Boarding is a zoo. Board by row. It’s faster."
Pros: "Icelandair crew were very hospitable and accompodating"
Cons: "I have never sat in such a narrow seat. Literally could not put my hand down the side to pull out my seat belt. Two days later I still have sores from where the side of the seats hit my hips. Did not even provide complimentary peanuts."
Cons: "Took far too long for drinks service into the flight. Almost 2 hours in before drinks came around to me"

I really did not like being ordered to pull my shade down by the attendants. One of them was very rude to me about it, standing there until I closed it like I was a child brusquely reaching across me to close an adjoining one. They claim it was so people who wanted to could sleep. It’s a 10:30am flight not a red eye. Closing your shade or leaving it up for natural light should be a choice. Ruined my flight!

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

The crew was very attentive and kept busy serving a variety of treats!

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

perhaps eye contact with the cabin crew, instead of abruptness and an impatience to serve.

Not enough trash pickups throughout the flight. Everything else was great.

Overall good, the gluten free food is very hit/miss though and you must tell them you have an allergy days in advance.

Book Cheap Seattle Plane Tickets

Recent return flight deals

 
These are the cheapest return flights to Seattle found on KAYAK in the last 72 hours.
23/5Thu
1 stopIcelandair
16h 20mDUB-SEA
30/5Thu
1 stopIcelandair
32h 10mSEA-DUB
€503
27/5Mon
1 stopIcelandair
28h 30mDUB-SEA
7/6Fri
1 stopIcelandair
28h 05mSEA-DUB
€520
4/6Tue
1 stopIcelandair
13h 25mDUB-SEA
11/6Tue
1 stopIcelandair
10h 55mSEA-DUB
€535
3/6Mon
1 stopKLM
15h 40mDUB-SEA
24/6Mon
1 stopKLM
17h 30mSEA-DUB
€575
3/9Tue
1 stopKLM
17h 33mSNN-SEA
11/9Wed
1 stopKLM
27h 55mSEA-SNN
€630
17/5Fri
directAer Lingus
9h 41mDUB-SEA
24/5Fri
directAer Lingus
9h 00mSEA-DUB
€670
27/5Mon
1 stopUnited Airlines
14h 38mSNN-SEA
6/6Thu
1 stopUnited Airlines
23h 05mSEA-SNN
€677
24/5Fri
directAer Lingus
9h 41mDUB-SEA
31/5Fri
1 stopAer Lingus
23h 30mSEA-DUB
€738
27/5Mon
2 stopsUnited Airlines
17h 45mDUB-SEA
6/6Thu
1 stopUnited Airlines
26h 45mSEA-DUB
€751
16/8Fri
1 stopBritish Airways
16h 58mDUB-SEA
24/8Sat
1 stopBritish Airways
21h 01mSEA-DUB
€842

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Seattle found on KAYAK in the last 72 hours.
25/5Sat
2 stops
47h 15mDUB-SEA
€380
7/6Fri
2 stops
46h 40mDUB-SEA
€381
7/6Fri
1 stopIcelandair
13h 25mDUB-SEA
€398
25/5Sat
1 stopIcelandair
13h 25mDUB-SEA
€400
7/6Fri
3 stops
33h 42mDUB-SEA
€410
24/8Sat
2 stopsWestJet
33h 31mDUB-SEA
€412
7/5Tue
2 stopsWestJet
33h 26mDUB-SEA
€453
4/5Sat
1 stopAer Lingus
16h 17mDUB-SEA
€483
24/8Sat
directAer Lingus
9h 41mDUB-SEA
€562
22/7Mon
3 stopsUnited Airlines
20h 52mDUB-SEA
€1,222

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Recent domestic flight deals

29/5Wed
multi-stopAlaska Airlines
5h 11mSFO-SEA
29/5Wed
directAlaska Airlines
2h 09mSEA-SFO
€124
9/10Wed
directDelta
4h 39mORD-SEA
15/10Tue
directDelta
3h 58mSEA-ORD
€130
7/5Tue
multi-stopSpirit Airlines
17h 05mDFW-SEA
8/5Wed
multi-stopSpirit Airlines
10h 09mSEA-DFW
€206
21/8Wed
directUnited Airlines
4h 34mORD-SEA
27/8Tue
multi-stopUnited Airlines
9h 45mSEA-ORD
€218
10/7Wed
multi-stopSun Country Air
7h 53mORD-SEA
12/7Fri
multi-stopSun Country Air
18h 40mSEA-ORD
€226
6/6Thu
multi-stopSun Country Air
15h 38mORD-SEA
9/6Sun
multi-stopSun Country Air
17h 07mSEA-ORD
€232
6/9Fri
directUnited Airlines
4h 37mORD-SEA
10/9Tue
directUnited Airlines
4h 01mSEA-ORD
€243
10/6Mon
multi-stopSouthwest
10h 45mLAX-SEA
13/6Thu
multi-stopSouthwest
11h 35mSEA-LAX
€246
8/5Wed
multi-stopSpirit Airlines
17h 14mDFW-SEA
11/5Sat
multi-stopSpirit Airlines
6h 09mSEA-DFW
€273
10/6Mon
multi-stopSouthwest
10h 30mONT-SEA
13/6Thu
multi-stopSouthwest
5h 35mSEA-ONT
€320

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Last minute flights to Seattle

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Seattle that are departing in the next 10 days.
2/5Thu
multi-stopIcelandair
13h 25mDUB-SEA
9/5Thu
multi-stopIcelandair
32h 10mSEA-DUB
€711
2/5Thu
multi-stopAmerican Airlines
20h 04mDUB-SEA
9/5Thu
multi-stopAmerican Airlines
26h 35mSEA-DUB
€740
2/5Thu
multi-stopAmerican Airlines
20h 04mDUB-SEA
9/5Thu
multi-stopAmerican Airlines
20h 53mSEA-DUB
€823
29/4Mon
multi-stop
33h 28mORK-SEA
10/5Fri
multi-stop
31h 00mSEA-ORK
€938
29/4Mon
multi-stopBritish Airways
34h 16mORK-SEA
10/5Fri
multi-stopBritish Airways
26h 15mSEA-ORK
€953
29/4Mon
multi-stopAmerican Airlines
51h 35mORK-SEA
9/5Thu
multi-stopAmerican Airlines
34h 35mSEA-ORK
€985
29/4Mon
multi-stopKLM
25h 05mORK-SEA
10/5Fri
multi-stopKLM
21h 20mSEA-ORK
€1,132
29/4Mon
multi-stop
29h 10mORK-SEA
10/5Fri
multi-stop
27h 35mSEA-ORK
€1,166
29/4Mon
multi-stop
29h 10mORK-SEA
10/5Fri
multi-stop
20h 50mSEA-ORK
€1,270

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Flights to Seattle

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Ireland

Cabin classes:

€2,291
€2,419
€278

Popular routes

The most searched flights to Seattle by KAYAK users.