Cheap Flights from Dublin to Seattle / Tacoma International

Compare Dublin to Seattle / Tacoma International flight deals

Find the cheapest month or even day of the year to fly to Seattle / Tacoma International

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Flight deals from Dublin to Seattle / Tacoma International

Looking for a cheap last-minute deal or the best return flight from Dublin Airport to Seattle / Tacoma International Airport? If you want to travel next month, return fares start from R 9,314. Find the lowest prices on one-way and return tickets right here.

Seattle.R 6,047 per passenger.Departing Wed, 16 Sep.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Dublin on Wed, 16 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 6,047, select.

Seattle.R 6,049 per passenger.Departing Tue, 25 Aug.One-way flight with jetBlue.Outbound indirect flight with jetBlue, departs from Dublin on Tue, 25 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 6,049, select.

Seattle.R 7,774 per passenger.Departing Tue, 6 Oct.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Dublin on Tue, 6 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 7,774, select.

Seattle.R 7,941 per passenger.Departing Thu, 29 Apr.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from Dublin on Thu, 29 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 7,941, select.

Seattle.R 7,947 per passenger.Departing Sat, 8 May.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from Dublin on Sat, 8 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 7,947, select.

Seattle.R 8,034 per passenger.Departing Tue, 17 Nov.One-way flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from Dublin on Tue, 17 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 8,034, select.

Seattle.R 8,148 per passenger.Departing Tue, 19 Jan.One-way flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from Dublin on Tue, 19 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 8,148, select.

Seattle.R 8,183 per passenger.Departing Mon, 8 Mar.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from Dublin on Mon, 8 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 8,183, select.

Seattle.R 8,259 per passenger.Departing Wed, 3 Feb.One-way flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from Dublin on Wed, 3 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 8,259, select.

Seattle.R 8,572 per passenger.Departing Mon, 13 Jul.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Dublin on Mon, 13 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 8,572, select.

Seattle.R 8,592 per passenger.Departing Wed, 2 Jun.One-way flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from Dublin on Wed, 2 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 8,592, select.

Seattle.R 8,999 per passenger.Departing Sun, 13 Dec.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from Dublin on Sun, 13 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 8,999, select.

Seattle.R 10,761 per passenger.Departing Fri, 6 Nov.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Fri, 6 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 10,761, select.

Seattle.R 10,799 per passenger.Departing Sun, 13 Dec.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Sun, 13 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 10,799, select.

Seattle.R 10,801 per passenger.Departing Sun, 7 Mar.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Sun, 7 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 10,801, select.

Seattle.R 10,815 per passenger.Departing Sun, 28 Feb.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Dublin on Sun, 28 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 10,815, select.

Find the cheapest month to fly from Dublin to Seattle / Tacoma International

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

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Direct flights from Dublin to Seattle / Tacoma International

Dublin to Seattle / Tacoma International: Alternative routes

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

Dublin to Seattle: Flight information

The things to know before you go.

Cheapest flight found	R 6,047
Cheapest month to fly	September
Average flight time	9 hrs, 49 mins
Most popular airline	Aer Lingus
Average flights per week	29

Finding cheap flights from Dublin to Seattle / Tacoma International: Frequently asked questions

How much are return flights from Dublin to Seattle / Tacoma International?

The best price we found for a return flight from Dublin to Seattle / Tacoma International is R 8,572. 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.

How long does it take to fly from Dublin to Seattle / Tacoma International?

9 hours and 49 minutes is the average flight time from Dublin to Seattle / Tacoma International.

Which airlines fly direct from Dublin to Seattle / Tacoma International?

Aer Lingus, American Airlines and Iberia fly direct from Dublin to Seattle / Tacoma International.

How many flights are there a week from Dublin to Seattle / Tacoma International?

As of July 2026, there are 29 flights per week flying from Dublin to Seattle / Tacoma International.

When is the cheapest time to fly from Dublin to Seattle / Tacoma International?

The cheapest month to fly from Dublin to Seattle / Tacoma International is usually August.

Which upcoming date is cheapest to fly from Dublin Airport to Seattle / Tacoma International Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Dublin Airport to Seattle / Tacoma International Airport on Saturday, 22 August 2026.

Can I get a direct flight from Dublin Airport to Seattle / Tacoma International Airport?

Yes – the average flight time is 9 hours and 49 minutes.

How can I find the best flight deal to Seattle / Tacoma International?

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 Seattle / Tacoma International 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.

When is the best time to book flights to Seattle?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Dublin Airport to Seattle / Tacoma International with?

Currently, WestJet and Aer Lingus offer the cheapest flight tickets to Seattle / Tacoma International.

Flying from Dublin Airport (DUB) to Seattle / Tacoma International Airport (SEA): what you need to know

Jump on a direct flight from Dublin Airport to Seattle / Tacoma International Airport and you'll be in the air for an average of 9 hours 45 minutes.
Seattle's timezone is UTC-8, which makes Seattle eight hours behind Dublin.
Every week, there are five Dublin Airport to Seattle / Tacoma International Airport flights. If you'd like to jet off as early as possible, opt for the 15:20 Aer Lingus flight. If you'd rather make the most of your day before flying, the last departure is at 16:30 with Aer Lingus.
Give yourself plenty of time to make your DUB to SEA flight. It's generally best to arrive at least two hours before international departures and an hour ahead for domestic flights.
During popular months such as July, it's best to get to the airport even earlier. Arrive two hours before domestic departures and four hours ahead for an international flight whenever you're flying during a high season in general.
Travelling to Seattle (and then discovering more of the United States!) is a snap with Aer Lingus. This popular carrier has direct flights from Dublin Airport to Seattle / Tacoma International Airport.
The airline most travellers prefer to fly with on this route is Aer Lingus.
Aer Lingus ranks as the leading on-time carrier for DUB to SEA flights, with 82.05% of its services reaching their destination on schedule.
If you'd like to split up your journey, simply deselect 'Direct flights only' when searching for your ticket from Dublin Airport to Seattle / Tacoma International Airport. These are the most popular stopovers between DUB and SEA:
- London Heathrow Airport
- Amsterdam Schiphol Airport
- Paris Charles de Gaulle Airport

Handy information about Dublin Airport (DUB)

Of the flights that depart from Dublin Airport, 77% arrive on time at their destination.
Dublin Airport is around 11 kilometres from central Dublin. If you're catching a taxi, ride-sharing or driving from the centre, it'll take 25 minutes or so to get there, depending on the traffic.
Planning to catch public transport? Expect a trip time of around 30 minutes.
Looking for a handy hotel close to DUB? If you've booked an early flight from Dublin Airport to Seattle / Tacoma International Airport, these accommodation options will have you moments from your departure lounge:

Arriving at Seattle / Tacoma International Airport (SEA)

The last thing you want is a long trip to your hotel if you're getting in late on a Dublin Airport to Seattle / Tacoma International Airport flight. Reserve one of these accommodation options near SEA instead:
Grab a Seattle / Tacoma International Airport rental car and discover Seattle and beyond with your own set of wheels. Thrifty, Europcar and Budget are leading providers to choose from here.
Booking your ride from Seattle / Tacoma International Airport about one week ahead can help you get the lowest rate.

Getting from Seattle / Tacoma International Airport (SEA) to central Seattle

From Seattle / Tacoma International Airport, Seattle is approximately 23 kilometres away. It takes around 25 minutes to reach the centre driving.
If you're travelling on public transport, expect a journey of about 35 minutes.

When to fly to Seattle / Tacoma International Airport (SEA)

The quietest month for a flight from Dublin Airport to Seattle / Tacoma International Airport is March, while July is the most popular. Pick the best time to go to Seattle based on whether you prefer a bustling atmosphere or a more laid-back vibe.
Lock in your flight from Dublin Airport to Seattle / Tacoma International Airport for August if you want to go to Seattle during its warmest month. Expect temperatures of between 12ºC (54ºF) and 28ºC (82ºF).
February has average temperatures of between -1ºC (30ºF) and 11ºC (52ºF). Look for cheap tickets from DUB to SEA around that time if you like travelling in cooler conditions.

Explore more of the United States

You've done Seattle, now it's time to explore other parts of the United States. Travel about 241 kilometres south to Portland to check off its must-visit sights. From Portland Japanese Garden to Peninsula Park Rose Garden and Beyond Van Gogh Portland, there's plenty to keep you busy.
If you want to check out another major stop in the United States, head for Spokane, about 370 kilometres east of Seattle. Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes are among the biggest draws.