Cheap Flights from Ireland to Seattle from £363

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

£402

06:15 - 11:55

Icelandair

1 stop

13h 40m

DUB - SEA

£414

00:55 - 12:43

KLM

2 stops

19h 48m

DUB - SEA

£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.

Flights from Dublin to Seattle from £444 pp

Destination information for Seattle

Things to know before you go - useful duration and weather info for your trip from Ireland to Seattle.

£1 = $1.38

23.0 °C

26.0 mm

Airports servicing

Donegal (CFN)

Dublin (DUB)

Galway (GWY)

Knock (NOC)

Cork (ORK)

Shannon (SNN)

Airports servicing Seattle

Seattle (SEA)

Airline	Cheapest	Average	Flexibility	On-time
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

Cheap flights from Ireland to Seattle

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?

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

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

Cheap flights from Ireland to Seattle in September, October 2021

The best prices found for Ireland to SEA flights in September, October

Ireland to Seattle 2021 flight deals

Cheap flights to Seattle from Ireland found for this year

Last-minute flights from Ireland to Seattle

Late deals on return flights to Seattle from Ireland, departing today and this week

One-way flights to Seattle/Tacoma Intl from Ireland

The cheapest one-way flights from Ireland to Seattle

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?

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

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

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

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

How popular is this Ireland to Seattle flight route?

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

Related searches

Flights to Seattle (SEA) from Ireland

Hire a Car

COVID Restrictions

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

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

Departure points for flights from Ireland to Seattle

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

Destination information for Seattle

Things to know before you go - useful duration and weather info for your trip from Ireland to Seattle.

Airports servicing

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.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2021.

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