Cheap flights from Ireland to Seattle from €318
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 1/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Ireland to Seattle
Recent return flight deals from Ireland to Seattle
Recent one-way flight deals from Ireland to Seattle
Recent last minute flight deals from Ireland to Seattle
Recent direct flight deals from Ireland to Seattle
Scandinavian Airlines flights from Ireland to Seattle
Our best Scandinavian Airlines deals on Ireland to Seattle flight tickets
Icelandair flights from Ireland to Seattle
Our best Icelandair deals on Ireland to Seattle flight tickets
See travel insights to Seattle from
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 November is your next best option. Flight prices from Ireland to Seattle during November average around €555.
What is the cheapest day to depart on your flight to Seattle?
Our data shows that Wednesday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as €653. Flights from Ireland to Seattle on a Saturday will generally be more expensive and average around €971. 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 at midday. Our users have found flights to Seattle at midday for as low as €0. Flights in the afternoon are often more expensive, with an average ticket price of €735.
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 9 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around €652 when searching 9 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 €578 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, Icelandair, and JetBlue 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 62% 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 week?
As of April 2025, 6 flights take off from Ireland and land in Seattle each week. The most common flight departure day for this route is Wed, with 50% 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 April 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 90.61% of all bookings. The subsequent popular models are Airbus A330-300 at 2.79%, Airbus A318/A319/A320/A321 at 2.28%, and Airbus A330 at 1.27%.
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 €453 | Free Cancellation | Rating 7.0 484 reviews | |||
| PriceFrom €505 | Free Cancellation | Rating 7.0 1,068 reviews | |||
| PriceFrom €510 | Free Cancellation | Rating 7.8 1,333 reviews | |||
| PriceFrom €538 | Free Cancellation | Rating 6.6 6,805 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.