Cheap flights from Seattle to Dublin from $239
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Dublin departing on 7/26. 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 and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize 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 Seattle to Dublin
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Aer Lingus flights from Seattle to Dublin
Our best Aer Lingus deals on Seattle to Dublin flight tickets
Scandinavian Airlines flights from Seattle to Dublin
Our best Scandinavian Airlines deals on Seattle to Dublin flight tickets
See travel insights to Dublin from
How to get the cheapest flight ticket from Seattle to Dublin
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 Dublin?
In general, January is the cheapest month to fly from Seattle to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $437. If you’re not able to fly to Dublin in January, then November is your next best option. Flight prices from Seattle to Dublin during November average around $505.
What is the cheapest day to depart on your flight to Dublin?
The cheapest day to depart from Seattle to Dublin is on a Wednesday. Travelers who choose to depart for Dublin on a Wednesday will often find tickets for as low as $757. Flights from Seattle to Dublin on a Saturday will generally be more expensive and average around $900. 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 Dublin?
At noon is the cheapest time of day to fly from Seattle to Dublin when you can find flight prices for as low as $610. Flying to Dublin at noon is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $866.
What is the cheapest Seattle/Tacoma Intl to Dublin flight route?
Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Dublin flight prices
How far in advance should I book a flight to Dublin?
You are more likely to see cheaper flights to Dublin from Seattle when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around $679 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Seattle for as low as $618 on momondo.
What cabin class options are available on Seattle/Tacoma Intl to Dublin flights?
There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Seattle to Dublin flights?
You could potentially save up to 8% on your flight if you consider stops on a Seattle to Dublin flight.
How have Seattle to Dublin flight prices changed over time?
As of June 2025, prices for Seattle to Dublin flights are approximately 14% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Dublin?
Icelandair, WestJet, and JetBlue are the most popular carriers operating from Seattle/Tacoma Intl to Dublin
What airlines fly to Dublin?
Aer Lingus, Icelandair and American Airlines are the top three most popular airlines that fly to Dublin from Seattle according to our data. Aer Lingus is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Dublin. Keep in mind that there are 13 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.
How many flights depart from Seattle to Dublin on average per day?
The number of flights available between Seattle and Dublin is 1 per day as of June 2025. The most frequent departure time is 7:00PM, with 100% of daily flights leaving in the evening.
How many flights depart from Seattle to Dublin on average per week?
As of June 2025, there are 8 flights per week flying from Seattle to Dublin. The most common day of the week flights depart is Mon, with 38% of flights taking off on this day.
When to book flights from Seattle to Dublin
Cheap Seattle to Dublin (SEA to DUB) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Dublin
How far is Seattle/Tacoma Intl to Dublin by plane?
Dublin is 4518.4 mi away from Seattle/Tacoma Intl. By plane, this route typically takes 9h 00m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Dublin Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Dublin Airport are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Dublin Airport?
There are 13 operators available for flights from Seattle/Tacoma Intl Airport to Dublin Airport as of June 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Dublin Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Dublin Airport.
What documentation or ID do you need to fly to Dublin Airport?
The necessary travel and health documents for your Dublin 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 license 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 Seattle to Dublin?
Based on momondo bookings for flights between Seattle and Dublin, the leading plane model is Airbus A330-200, making up 50.02% of the total bookings. Other popular models include Airbus A330-900neo with 14.42%, Boeing 787-10 Dreamliner with 9.34%, and Boeing 777-300ER with 6.89%.
What is the most popular airline from Seattle to Dublin?
Based on momondo bookings for flights between Seattle and Dublin, the leading airline is Aer Lingus, making up 53% of the total bookings. Other popular airlines include Icelandair with 22%, American Airlines with 8%, and British Airways with 6%.
Best airlines flying from Seattle to Dublin
Compare and see reviews for airlines that fly from Seattle to Dublin with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $379 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom $391 | Free Cancellation | Rating 7.0 2,776 reviews | |||
| PriceFrom $445 | Free Cancellation | Rating 6.6 7,008 reviews | |||
| PriceFrom $452 | Free Cancellation | Rating 7.1 1,117 reviews | |||
| PriceFrom $468 | Free Cancellation | Rating 7.3 1,387 reviews | |||
| PriceFrom $486 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $490 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom $496 | Free Cancellation | Rating 6.7 7,136 reviews | |||
| PriceFrom $509 | Free Cancellation | Rating 7.1 9,531 reviews | |||
| PriceFrom $518 | Free Cancellation | Rating 7.5 1,463 reviews |
American Airlines Flights From Seattle to Dublin
American Airlines flies from Seattle to Dublin around 1 time per week, with 10,000 momondo users rating the airline 7.2/10. The cheapest American Airlines deal from Seattle to Dublin in the last 72 hours was $585 (round-trip), much lower than the average airfare cost of $907 for American Airlines flights on this route.
Aer Lingus Flights From Seattle to Dublin
Aer Lingus (7.1/10 from 1,117 reviews) operates around 1 flight from Seattle to Dublin in any given week. The average Aer Lingus airfare for this route is around $747, with deals from around $452 rare but found on momondo. Referenced prices are for round-trip Seattle to Dublin flight searches in the last 72 hours.
Traveling to a place near Dublin?
Book flights to Dublin if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seattle to Dublin?
It is quick and easy to find Seattle to Dublin flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Dublin that suits you.
Can I find flights from Seattle to Dublin with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Seattle to Dublin flights to just show those with flexible booking policies.
How can momondo help me find flights from Seattle to Dublin?
momondo provides multiple filters to help you find the best flight to Dublin from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Seattle to Dublin right now. Can momondo alert me if prices change?
Price alerts on flights to Dublin from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.