Cheap flights from Ireland to Seattle from $270
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 5/7. 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?
In general, February is the cheapest month to fly from Ireland to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $605. If you don’t want to visit Seattle in February, then you should wait until November to fly from Ireland, when ticket prices are also cheap, with an average price of $609.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Ireland is on a Sunday. momondo users have found tickets for Sunday departures for as low as $803. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Ireland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,257.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from Ireland in the morning is the least expensive time of day to depart. momondo users have found prices as low as $750 when looking at flights departing in the morning. Flights to Seattle are more costly in the afternoon, with an average ticket price of $884. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.
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 $741 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 $657 on momondo.
What cabin class options are available on Ireland to Seattle/Tacoma Intl flights?
There are 4 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
What airlines fly to Seattle?
Aer Lingus, Icelandair and American Airlines 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 68% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 3 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?
The number of flights available between Ireland and Seattle is 3 per day as of April 2025. The most frequent departure time is 3:00PM, with 100% of daily flights leaving in the afternoon.
How many flights depart from Ireland to Seattle on average per week?
As of April 2025, there are 21 flights per week flying from Ireland to Seattle. The most common day of the week flights depart is Mon, with 14% of 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?
As of April 2025, there are 3 operators available to choose from for flights from Ireland to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Ireland to Seattle/Tacoma Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. 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 travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Ireland to Seattle?
Based on momondo bookings for flights between Ireland and Seattle, the leading plane model is Airbus A330-200, making up 90.61% of the total bookings. Other popular models include Airbus A330-300 with 2.79%, Airbus A318/A319/A320/A321 with 2.28%, and Airbus A330 with 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 $556 | Free Cancellation | Rating 7.0 478 reviews | |||
| PriceFrom $605 | Free Cancellation | Rating 7.0 1,060 reviews | |||
| PriceFrom $684 | Free Cancellation | Rating 7.2 10,000 reviews |
Traveling to a place near Seattle?
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Why should I use momondo to find a flight deal from Ireland 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 from Ireland.
Can I find flights from Ireland to Seattle with flexible booking policies on momondo?
Flights from Ireland 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 from Ireland to Seattle?
momondo provides multiple filters to help you find the best flight to Seattle from Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Ireland 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 from Ireland and alert you when they change.