463 € Cheap Flights from Seattle to Dublin

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Flight deals from Seattle to Dublin Airport

Looking for a cheap last-minute deal or the best return flight from Seattle to Dublin Airport? If you want to travel next month, return fares start from 463 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle to Dublin

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Dublin flights are currently cheapest in April.

Direct flights from Seattle to Dublin

Seattle to Dublin: Alternative routes

Compare routes from Seattle to Dublin below. You may find an airport to fly into that's cheaper, faster, or easier than Dublin.

Seattle to Dublin: Flight information

The things to know before you go.
Cheapest flight found463 €
Cheapest month to flyApril
Average flight time9 hrs, 6 mins
Most popular airlineAer Lingus
Average flights per week41

Finding cheap flights from Seattle to Dublin: Frequently asked questions

The best price we found for a return flight from Seattle to Dublin is 463 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
9 hours and 6 minutes is the average flight time from Seattle to Dublin.
Aer Lingus, British Airways and American Airlines fly direct from Seattle to Dublin.
As of March 2026, there are 50 flights per week flying from Seattle to Dublin.
The cheapest month to fly from Seattle to Dublin is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Dublin Airport on Tuesday, 14 April 2026.
Yes – the average flight time is 9 hours and 6 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Dublin but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Dublin is around 40 days in advance, so don’t leave your flight to the last minute.

Travelling from Seattle to Dublin Airport (DUB): What you need to know

  • Seattle's main base, Seattle-Tacoma International Airport (SEA), is where new adventures begin. Explore the departure options from here when planning your flight from Seattle to Dublin Airport (DUB).

  • 9 hours is the average journey time for a direct Seattle to Dublin Airport flight.

  • Dublin Airport is located in Dublin. The city operates on the UTC+0 timezone and is eight hours ahead of Seattle.

  • Seattle-Tacoma International Airport (SEA) to Dublin Airport (DUB) is the busiest route, with 6 direct services each week. Travel from SEA to DUB on Aer Lingus's 6:45pm departure.

  • To ensure you get on your flight from Seattle to DUB, leave plenty of time to check in and find your gate. Turning up two hours ahead of international departures and one hour before domestic flights is the general rule.

  • If you're flying during a peak month like July, get to the terminal even earlier. It's wise to arrive up to four hours before an international flight and two hours ahead of domestic departures. Check-in and security lines are longer during high seasons like Thanksgiving, Christmas and New Year.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Get to your destination in one go from Seattle-Tacoma International Airport (SEA). Direct flights from Seattle to Dublin Airport (DUB) are available from here.

  • You can travel on a direct flight from Seattle to Dublin Airport with Aer Lingus. This well-known airline operates services from SEA.

  • Aer Lingus is the most frequently chosen airline for flights from SEA to DUB.

  • The carrier with the top on-time arrival performance on this route is Aer Lingus.

  • A stopover is the perfect opportunity to break up your trip and possibly even explore a different city. When searching for cheap flights from Seattle to DUB leaving from Seattle-Tacoma International Airport (SEA), uncheck the 'Direct flights only' box to get ideas for where to visit along the way. Top options include:

    • London Heathrow Airport (LHR)

    • Vancouver International Airport (YVR)

    • Keflavik Airport (KEF)

  • SEA is around 23 kilometres from central Seattle. If you're catching a taxi, ride-sharing or driving from the centre, it'll take you 25 minutes or so to get there, depending on the traffic. If you're using public transport, expect the travel time to be around 35 minutes.

  • Searching for a comfortable hotel near Seattle-Tacoma International Airport? If you've booked an early flight from Seattle to Dublin Airport, these accommodation options will put you moments from your departure gate:

  • Seattle-Tacoma International Airport has a solid on-time performance, so you're unlikely to face delays. Departures from SEA touch down on schedule 80% of the time.

Seattle Paine Field International Airport (PAE)

  • With public transport, you can travel from central Seattle to PAE in about 1 hour 30 minutes. The airport is roughly 40 kilometres away, and making the journey by car will take approximately 40 minutes.

  • Want to enjoy an extra night away before boarding your Seattle to DUB flight? Check in to a hotel near Seattle Paine Field International Airport before your holiday officially begins. Here's where you can stay:

  • Seattle Paine Field International Airport has a strong track record for reliability and timeliness. 80% of flights taking off from here land when expected.

About Dublin Airport (DUB)

Getting from Dublin Airport (DUB) to central Dublin

  • Dublin Airport is around 11 kilometres from the centre of Dublin. It takes around 25 minutes or so to get to the city by car.

  • It takes roughly 30 minutes when travelling by public transport.

How to find the cheapest flights from Seattle to Dublin Airport (DUB)

  • At the moment, 195 € is the best price we've found for a one-way ticket from Seattle to Dublin Airport. The cheapest price for a return flight is 463 €. Remember fares may change due to demand at the time of booking.

  • Get cheap flights from Seattle to DUB by booking three months ahead. Based on our research, that's the ideal time frame for finding a bargain.

  • The best month for landing cheap Seattle to Dublin Airport tickets is August. Use the 'Whole month' tool to compare prices, then select the dates with the lowest fares.

  • You don't need to search every day to find out if fares have dropped when you create a Price Alert. We'll let you know as soon as there's a better deal on plane tickets from Seattle to DUB.

  • Find an affordable flight from Seattle to Dublin Airport by using filters. Select your ideal times, airlines and number of stops, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Seattle to Dublin Airport (DUB)

  • It's time to work out your travel dates for your flight from Seattle to Dublin Airport (DUB). July is the most popular month to visit Dublin. If crowds aren't your thing, think about going in December.

  • Lock in a Seattle to DUB plane ticket departing in July if you want to visit the city during its warmest month. Expect temperatures in Dublin to range from 10ºC (50ºF) to 19ºC (66ºF).

  • January has temperatures of between 2ºC (36ºF) and 9ºC (48ºF). Look for cheap tickets from Seattle to Dublin Airport around that time if you like travelling in cooler conditions.

More about Dublin

Explore more of Ireland

  • Cork is just one of the many places in Ireland waiting to be explored once you've seen Dublin. Around 225 kilometres away to the southwest, its best attractions include Blarney Castle & Gardens, Blarney Castle House(Teach Caisleán na Blarnan) and Blarney Stone.

  • Around 145 kilometres southwest of Dublin, Waterford is another essential stop in Ireland. No visit is complete without checking out Bishop's Palace, Christ Church Cathedral and Waterford Treasures Medieval Museum.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.