Cheap flights from Ireland to Seattle from €262
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Seattle departing on 15/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Ireland to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Seattle?
If you’re not able to fly to Seattle in February, then January is your next best option. Flight prices from Ireland to Seattle during January average around €548.
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 Sunday will generally be more expensive and average around €791. 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 €576. Flights in the afternoon are often more expensive, with an average ticket price of €699.
What is the cheapest Ireland to Seattle/Tacoma Intl flight route?
Fly from Dublin to Seattle/Tacoma Intl for the best Ireland - Seattle/Tacoma Intl flight prices
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from Ireland when booking 17 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around €641 when searching 17 weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Ireland for as low as €589 on momondo.
What cabin class options are available on Ireland to Seattle/Tacoma Intl flights?
There are 1 cabin classes available to choose from on Ireland to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Ireland to Seattle/Tacoma Intl?
WestJet, Scandinavian Airlines, and Icelandair are the most popular carriers operating from Ireland to Seattle/Tacoma Intl
Which airlines fly to Seattle?
Aer Lingus, Icelandair and British Airways are the top three most popular airlines that fly to Seattle from Ireland according to our data. Aer Lingus is the first choice among our users, with 55% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 4 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.
How many flights depart from Ireland to Seattle on average per day?
As of June 2025, 2 flights take off from Ireland and land in Seattle each day. The most common flight departure time for this route is 16:00, with 100% of daily flights taking off in the afternoon.
How many flights depart from Ireland to Seattle on average per week?
As of June 2025, 20 flights take off from Ireland and land in Seattle each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.
Cheap Ireland to Seattle flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ireland to Seattle
When did momondo last update prices for flights from Ireland to Seattle/Tacoma Intl Airport?
Prices for flights from Ireland to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from Ireland to Seattle/Tacoma Intl Airport?
The number of operators available for flights from Ireland to Seattle/Tacoma Intl Airport is 4 as of June 2025.
How old do you have to be to fly from Ireland to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Ireland to Seattle?
momondo data reveals that the most frequently booked plane model on the route from Ireland to Seattle is Airbus A330-200, representing 80.31% of all bookings. The subsequent popular models are Airbus A318/A319/A320/A321 at 7.81%, Airbus A330-300 at 4.06%, and Boeing 737-900 Passenger/BBJ3 (winglets) at 2.50%.
Best airlines flying from Ireland to Seattle
Compare and see reviews for airlines that fly from Ireland to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom €446 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom €498 | Free Cancellation | Rating 7.1 1,118 reviews | |||
| PriceFrom €502 | Free Cancellation | Rating 7.8 1,361 reviews | |||
| PriceFrom €529 | Free Cancellation | Rating 6.6 7,019 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Ireland to Seattle?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ireland to Seattle. momondo saves you time and could save you money on your trip.
Can I find flights from Ireland to Seattle with flexible booking policies on momondo?
momondo does allow users to show only those flights to Seattle from Ireland which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Ireland to Seattle?
Once all potential Ireland to 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 from Ireland to Seattle right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Seattle from Ireland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.