Find cheap flights to Seattle from €425

1 adult
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Tue 5/12
Tue 12/12

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About Flights to Seattle

Summary info about Seattle flight prices, duration and airlines

Best One-Way Price


Best Round-Trip Price


Fastest flight time

9h 45m

Operated By

9 airlines
The best one-way flight price to Seattle from Ireland in the last 72 hours is €425 (Dublin to Seattle/Tacoma Intl).
The best round-trip flight price to Seattle from Ireland in the last 72 hours is €580 (Dublin to Seattle/Tacoma Intl).
The fastest flight to Seattle from Ireland takes 9h 45m (Dublin to Seattle/Tacoma Intl).
There are 9 airlines operating flights to Seattle, including American Airlines, United Airlines and JetBlue.

Seattle flights insights and trends

Explore insights for your Seattle flight to craft the best travel plan

What is the cheapest month to fly to Seattle?

If you’re not able to fly to Seattle in February, then March is your next best option. Flight prices from Ireland to Seattle during March average around €504.

What is the cheapest day to depart on your flight to Seattle?

Our data shows that Thursday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as €646. Flights from Ireland to Seattle on a Monday will generally be more expensive and average around €973. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Seattle?

Our data shows that the cheapest Ireland to Seattle flights are usually those with departure times in the morning. Our users have found flights to Seattle in the morning for as low as €645. Flights at midday are often more expensive, with an average ticket price of €716.

How long does it take to fly to Seattle?

On average, it takes 9h 40m to fly from Ireland to Seattle if you fly out of Dublin (the most popular airport in Ireland) and into Seattle/Tacoma Intl (the most popular airport in Seattle). If you’re flying out of Shannon and into Seattle/Tacoma Intl, then the flight time is around 32h 45m.

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

We recommend purchasing flights from Ireland to Seattle 52 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to Seattle for €632. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Ireland for as low as €371 on momondo.

Cheapest flights to Seattle airports

Find the cheapest flights to these Seattle airports from your nearest city or airport


Dublin (DUB) to Seattle (SEA)

Typically, flights to Seattle from Dublin are cheaper when flying from Dublin to Seattle/Tacoma Intl, which has an average price of €632

CHEAPEST MONTH TO FLY TO SEATTLE FROM DUBLINFebruary29% cheaperFlying from Dublin to Seattle costs on average just €450 in February
MOST EXPENSIVE MONTH TO FLY TO SEATTLE FROM DUBLINJuly49% more expensiveIt costs about €945 for flights to Seattle from Dublin in July
MOST POPULAR MONTH TO FLY TO SEATTLE FROM DUBLINSeptember278% more users visitedMore momondo users searched in flights to Seattle from Dublin in September than any other month

Frequently asked questions about flying to Seattle

When is it best to fly to Seattle to go sightseeing?

Most momondo users would consider October to be the best times to fly to Seattle to see sights like Seattle Center. Typically, the weather in Seattle is under 70 degrees Fahrenheit (21°C) but still warm and the chance of rain is only moderate.

Is there an alternative airport near Seattle?

Seattle King County/Boeing Airport, Kenmore Air Harbor Airport, Seattle/Tacoma Intl Airport, Everett Paine Field Airport or Lopez Island Airport can be an alternative airport used for travel to Seattle.

When did momondo last update prices for flights to Seattle/Tacoma Intl Airport?

Prices for flights to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

How many operators does momondo search for flights to Seattle/Tacoma Intl Airport?

How old do you have to be to fly to Seattle/Tacoma Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Seattle flight deals found on momondo

Check out some of the best fares from airports in Ireland to Seattle found recently by users on momondo
Multiple Airlines
5 Mar
17h 46m
1 stop
SEA21:16Seattle/Tacoma Intl
12 Mar
SEA23:07Seattle/Tacoma Intl
23h 08m
1 stop
8 Apr
13h 45m
1 stop
SEA20:35Seattle/Tacoma Intl
26 Apr
SEA18:55Seattle/Tacoma Intl
10h 55m
1 stop
Multiple Airlines
29 Jan
17h 15m
1 stop
SEA21:30Seattle/Tacoma Intl
2 Feb
SEA13:55Seattle/Tacoma Intl
16h 35m
1 stop
9 Mar
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
18 Mar
SEA15:35Seattle/Tacoma Intl
11h 40m
1 stop
15 Apr
13h 25m
1 stop
SEA17:40Seattle/Tacoma Intl
4 May
SEA15:50Seattle/Tacoma Intl
11h 15m
1 stop
30 Mar
13h 15m
1 stop
SEA17:45Seattle/Tacoma Intl
8 Apr
SEA15:50Seattle/Tacoma Intl
11h 15m
1 stop

Find the cheapest one-way flights to Seattle

If you're looking for one-way flights from Ireland to Seattle, view some of our deals below provided by Icelandair and JetBlue
27 May
13h 45m
1 stop
SEA20:35Seattle/Tacoma Intl
Multiple Airlines
18 Dec
31h 35m
3 stops
SEA10:35Seattle/Tacoma Intl
Multiple Airlines
20 Dec
35h 28m
3 stops
SEA09:58Seattle/Tacoma Intl

Why use momondo?

Why should I use momondo to find a flight deal to Seattle?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle.

Can I find flights to Seattle with flexible booking policies on momondo?

Flights to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights to Seattle?

Once all potential Seattle flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times, amongst many other options.

I’m not ready to book a flight to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle and alert you when they change.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.