Cheap flights from Ireland to Seattle

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How to find the cheapest flight from
Ireland to Seattle (SEA)

All the information you need to plan the best null to SEA flight in 2021: compare Ireland to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
How far in advance should I book a flight from Ireland to Seattle?

Travellers have found it’s best to book a flight 57 days in advance to save up to 75% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 57 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Ireland to Seattle 1-2 weeks in advance for as low as £495, or £707 for flights within the next 24 hours.

What is the cheapest month to fly from Ireland to Seattle?

Flights from Ireland to Seattle lean towards being more expensive in July. Prices are generally better when you fly from Ireland to Seattle in February, with the cheapest ticket starting at £278.

When is the cheapest time to fly from Ireland to Seattle (IE0 - SEA)?

When flying from Ireland to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap flights from Ireland to Seattle in September, October 2021

The best prices found for Ireland to SEA flights in September, October
3 Oct - 25 Oct
£442pp
DUB
Dublin
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
DUB
Dublin
30 Sep - 3 Oct
£444pp
DUB
Dublin
Multiple airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
DUB
Dublin
29 Sep - 8 Oct
£470pp
DUB
Dublin
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
DUB
Dublin

Ireland to Seattle 2021 flight deals

Cheap flights to Seattle from Ireland found for this year
11 Nov - 15 Nov
£363pp
DUB
Dublin
Multiple airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
DUB
Dublin
6 Nov - 13 Nov
£391pp
DUB
Dublin
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
DUB
Dublin
11 Nov - 15 Nov
£392pp
DUB
Dublin
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
DUB
Dublin

Last-minute flights from Ireland to Seattle

Late deals on return flights to Seattle from Ireland, departing today and this week
29 Sep - 8 Oct
£470pp
DUB
Dublin
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
DUB
Dublin
29 Sep - 30 Oct
£503pp
DUB
Dublin
Multiple airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air France
 
1 STOP
DUB
Dublin
29 Sep - 28 Oct
£506pp
DUB
Dublin
KLM
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
KLM
   
2 STOPS
DUB
Dublin

One-way flights to Seattle/Tacoma Intl from Ireland

The cheapest one-way flights from Ireland to Seattle
00:00 - 17:21
TAP AIR PORTUGAL
2 stops
25h 21m
DUB - SEA
TAP AIR PORTUGAL
06:15 - 11:55
Icelandair
1 stop
13h 40m
DUB - SEA
Icelandair
00:55 - 12:43
KLM
2 stops
19h 48m
DUB - SEA
KLM
£420
KLM

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Ireland</span> to <span class="emphasized">Seattle</span> flights.

Flight FAQs

From Ireland to Seattle

What airport do you fly into for flights to Seattle from Ireland?

For a flight from Ireland to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the centre of the city.

Which airlines flying from Ireland to Seattle/Tacoma Intl have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Aer Lingus, Icelandair, and British Airways flying from Ireland to Seattle/Tacoma Intl have implemented new flexible cancellation policies.

Are flight prices decreasing from Ireland to Seattle due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Ireland and Seattle for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Ireland to Seattle for under £400 on Cheapflights?

Yes, there are multiple flights from Ireland to Seattle for under £400. The cheapest flight booked recently is on Multiple Airlines for just £363, but on average you can expect to pay £434.

Are there last-minute flights available from Ireland to Seattle for under £500?

There are currently 20+ open flights from Ireland to Seattle within the next 7 days for less than £500.

How popular is this Ireland to Seattle flight route?

Within the past month, 251 users have taken a look at flights from Ireland to Seattle/Tacoma Intl.

What are the cheapest airlines to fly from Ireland to Seattle one-way?

For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as £402. Users have also found prices from £414 and £416 on TAP AIR PORTUGAL and Icelandair, respectively.

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COVID Restrictions

View COVID Travel Restrictions for Seattle, WA

Do I need a COVID test to fly to Seattle from Ireland?

Information is based on travel restrictions from Ireland to Seattle/Tacoma Intl

Most visitors from Ireland will not be allowed to enter Seattle/Tacoma Intl.

COVID-19 testing requirements
Visitors from Ireland must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Ireland are not required to quarantine after entering Seattle/Tacoma Intl.

Do I need a test to fly back to Ireland from Seattle?

Returning to Ireland from Seattle/Tacoma Intl

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Ireland.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Ireland.

Hide COVID Travel Restrictions for Seattle, WA

Departure points for flights from Ireland to Seattle

Select to see more specific information for flights to Seattle from all departure points in Ireland.
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Destination information for Seattle

Things to know before you go - useful duration and weather info for your trip from Ireland to Seattle.
Today's exchange rate
£1 = $1.38
Average temperature for September in Seattle
23.0 °C
Avg rainfall for September in Seattle
26.0 mm

Airports servicing

Dublin (DUB)
Galway (GWY)
Knock (NOC)
Cork (ORK)
Shannon (SNN)

Airports servicing Seattle

Top 8 airlines flying from Ireland to Seattle/Tacoma Intl

The chart below displays the airlines Cheapflights users travelling from Ireland to Seattle choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Air Canada
£386 £565 No cancel fee 67%
Search Air Canada flights
Air France
£428 £569 No cancel fee 77%
Search Air France flights
KLM
£401 £636 No cancel fee 75%
Search KLM flights
Icelandair
£381 £666 No cancel fee 76%
Search Icelandair flights
British Airways
£501 £685 No cancel fee 70%
Search British Airways flights
Aer Lingus
£411 £739 No cancel fee N/A
Search Aer Lingus flights
United Airlines
£389 £745 No cancel fee 69%
Search United Airlines flights
Delta
£494 £759 No cancel fee N/A
Search Delta flights
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