How popular is this Ireland to Seattle flight route?

Flights from Ireland to Seattle/Tacoma Intl have been viewed 74 times in the past calendar month.

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

Travellers seeking maximum savings on their Ireland to Seattle flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What are the cheapest flights from Ireland to Seattle?

The cheapest flight price from Ireland to Seattle is £503. On average you can expect to pay £1,094. The most popular route, (Dublin - Seattle/Tacoma Intl), can usually be booked for £661.

What are the most reliable airlines from Ireland to Seattle?

Before booking your flight to Seattle from Ireland, check out the most reliable airlines to get you to your destination on time: American Airlines (82%), Aer Lingus (82%), British Airways( 82%).

What are the most popular airlines that fly from Ireland to Seattle?

British Airways, Aer Lingus and Icelandair are the most popular airlines when flying from Ireland to Seattle.

What is the cheapest day to fly round-trip from Ireland to Seattle?

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 37% on the overall cost on flights from Ireland to Seattle.

How far in advance should I book a flight from Ireland to Seattle?

Find a great deal and save up to 84% by booking at least 33 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ireland to Seattle within the next two weeks, with the cheapest ticket starting at £501.

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

February is one of the best times of the year to fly to Seattle from Ireland. Prices for February average £575 per person but you can even find prices for as low as £375. The most expensive prices can be found in the month of July. Opting for a February flight can save you 38% on your journey compared to booking in July

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 center of the city.

Can I find deals for flights from Ireland to Seattle that include hotel bookings?

Yes. In addition to deals on Ireland to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Ireland to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Seattle.

Can I find deals for business class flights from Ireland to Seattle?

Yes. Cheapflights offers flight deals from Ireland to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£614+ Flights from Ireland to Seattle

Cheap flight deals from Ireland to Seattle

Round-trip from	£287
One-way from	£267
Popular in	July
Cheapest in	February
Average price	£539
Good round-trip deal	£506 or less

Scandinavian Airlines
20/5-30/5
2 total stops
66h 35m total
Ireland to Seattle

Search Deals

WestJet
28/5
2 total stops
33h 19m total
Ireland to Seattle

Search Deals

Highest demand for flights based on searches. 21% potential increase in price (£121 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Price to beat on a round-trip flight from Ireland to Seattle/Tacoma Intl.

Search Deals

Find flight deals from Ireland to Seattle

Cheapest flights from Ireland to Seattle
Explore the most affordable flight options available from Ireland to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 March 2025.

Tue 20/512:40DUB - SEA

1 stop33h 10mScandinavian Airlines

Fri 30/516:00SEA - DUB

1 stop33h 25mScandinavian Airlines

Deal found 30/3£287

Fri 16/512:15DUB - SEA

1 stop13h 35mIcelandair

Fri 30/523:30SEA - DUB

1 stop27h 35mIcelandair

Deal found 30/3£451

Wed 7/512:50DUB - SEA

1 stop15h 38mMultiple Airlines

Tue 20/519:00SEA - DUB

2 stops15h 35mMultiple Airlines

Deal found 30/3£504

Fri 16/515:20DUB - SEA

Nonstop9h 39mAer Lingus

Fri 30/518:45SEA - DUB

Nonstop9h 00mAer Lingus

Deal found 30/3£508

Wed 9/410:55DUB - SEA

1 stop15h 25mBritish Airways

Wed 16/413:30SEA - DUB

1 stop14h 25mBritish Airways

Deal found 29/3£516

Wed 7/511:10DUB - SEA

1 stop12h 47mDelta

Tue 20/510:25SEA - DUB

2 stops20h 35mDelta

Deal found 31/3£520

Sun 20/412:00DUB - SEA

1 stop16h 48mAir France

Sat 26/407:35SEA - DUB

1 stop19h 10mAir France

Deal found 31/3£573

Wed 4/611:30DUB - SEA

1 stop17h 24mJetBlue

Wed 18/611:30SEA - DUB

1 stop12h 50mJetBlue

Deal found 31/3£581

Wed 4/611:30DUB - SEA

2 stops33h 28mWestJet

Sat 7/607:05SEA - DUB

2 stops42h 55mWestJet

Deal found 30/3£617

Fri 9/515:20DUB - SEA

Nonstop9h 39mAmerican Airlines

Fri 30/513:30SEA - DUB

1 stop12h 45mAmerican Airlines

Deal found 30/3£627

Wed 9/409:50DUB - SEA

2 stops17h 11mUnited Airlines

Wed 16/407:08SEA - DUB

3 stops19h 12mUnited Airlines

Deal found 29/3£630

Thu 8/508:40DUB - SEA

2 stops17h 53mSWISS

Thu 22/514:50SEA - DUB

2 stops19h 00mSWISS

Deal found 31/3£634

Best flights from Ireland to Seattle
Discover carefully curated flight deals from Ireland to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 March 2025.

Tue 20/512:40DUB - SEA

1 stop33h 10mScandinavian Airlines

Fri 30/516:00SEA - DUB

1 stop33h 25mScandinavian Airlines

Deal found 30/3£287

Fri 16/512:15DUB - SEA

1 stop13h 35mIcelandair

Fri 30/523:30SEA - DUB

1 stop27h 35mIcelandair

Deal found 30/3£451

Wed 7/512:50DUB - SEA

1 stop15h 38mMultiple Airlines

Tue 20/519:00SEA - DUB

2 stops15h 35mMultiple Airlines

Deal found 30/3£504

Fri 16/515:20DUB - SEA

Nonstop9h 39mAer Lingus

Fri 30/518:45SEA - DUB

Nonstop9h 00mAer Lingus

Deal found 30/3£508

Wed 7/511:10DUB - SEA

1 stop12h 47mDelta

Tue 20/510:25SEA - DUB

2 stops20h 35mDelta

Deal found 31/3£520

Sun 20/412:00DUB - SEA

1 stop16h 48mAir France

Sat 26/407:35SEA - DUB

1 stop19h 10mAir France

Deal found 31/3£573

Wed 4/611:30DUB - SEA

1 stop17h 24mJetBlue

Wed 18/611:30SEA - DUB

1 stop12h 50mJetBlue

Deal found 31/3£581

Wed 4/611:30DUB - SEA

2 stops33h 28mWestJet

Sat 7/607:05SEA - DUB

2 stops42h 55mWestJet

Deal found 30/3£617

Fri 9/515:20DUB - SEA

Nonstop9h 39mAmerican Airlines

Fri 30/513:30SEA - DUB

1 stop12h 45mAmerican Airlines

Deal found 30/3£627

Thu 15/509:50DUB - SEA

2 stops21h 13mUnited Airlines

Thu 22/523:37SEA - DUB

2 stops23h 18mUnited Airlines

Deal found 31/3£630

Thu 8/508:40DUB - SEA

2 stops17h 53mSWISS

Thu 22/514:50SEA - DUB

2 stops19h 00mSWISS

Deal found 31/3£634

Thu 5/605:55DUB - SEA

1 stop18h 00mKLM

Fri 27/609:50SEA - DUB

1 stop16h 10mKLM

Deal found 31/3£648

Direct flights from Ireland to Seattle
Explore direct flight options from Ireland to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 31 March 2025.

Fri 16/515:20DUB - SEA

Nonstop9h 39mAer Lingus

Fri 30/518:45SEA - DUB

Nonstop9h 00mAer Lingus

Deal found 30/3£508

Wed 7/515:20DUB - SEA

Nonstop9h 39mAmerican Airlines

Tue 20/518:45SEA - DUB

Nonstop9h 00mAmerican Airlines

Deal found 30/3£640

Last-minute flights from Ireland to Seattle
Discover last-minute flight deals from Ireland to Seattle. Data last updated 31 March 2025 and is based on user searches.

Mon 31/317:45DUB - SEA

2 stops26h 40mLufthansa

Fri 4/412:46SEA - DUB

1 stop13h 34mLufthansa

Deal found 31/3£813

Sun 6/410:15DUB - SEA

2 stops21h 01mScandinavian Airlines

Sun 13/407:30SEA - DUB

2 stops20h 20mScandinavian Airlines

Deal found 31/3£539

Mon 7/412:15DUB - SEA

1 stop13h 35mIcelandair

Fri 18/415:45SEA - DUB

1 stop11h 20mIcelandair

Deal found 31/3£467

Mon 7/415:20DUB - SEA

Nonstop9h 39mAer Lingus

Fri 18/418:45SEA - DUB

Nonstop9h 00mAer Lingus

Deal found 31/3£559

Mon 7/415:20DUB - SEA

Nonstop9h 39mAmerican Airlines

Fri 18/420:20SEA - DUB

1 stop16h 10mAmerican Airlines

Deal found 30/3£627

Mon 7/412:15DUB - SEA

1 stop13h 35mMultiple Airlines

Sun 20/411:47SEA - DUB

2 stops17h 28mMultiple Airlines

Deal found 30/3£825

Mon 7/418:50DUB - SEA

2 stops35h 37mTAP AIR PORTUGAL

Sun 20/423:55SEA - DUB

2 stops34h 10mTAP AIR PORTUGAL

Deal found 30/3£2,185

Mon 7/415:20DUB - SEA

Nonstop9h 39mAer Lingus

Fri 18/418:45SEA - DUB

Nonstop9h 00mAer Lingus

Deal found 30/3£559

Wed 9/410:55DUB - SEA

1 stop15h 25mBritish Airways

Wed 16/413:30SEA - DUB

1 stop14h 25mBritish Airways

Deal found 29/3£516

Wed 9/409:50DUB - SEA

2 stops17h 11mUnited Airlines

Wed 16/407:08SEA - DUB

3 stops19h 12mUnited Airlines

Deal found 29/3£630

Thu 10/408:55DUB - SEA

1 stop15h 05mDelta

Wed 23/412:00SEA - DUB

1 stop11h 45mDelta

Deal found 31/3£522

Fri 11/408:55DUB - SEA

1 stop15h 05mDelta

Sat 19/418:40SEA - DUB

1 stop29h 35mDelta

Deal found 31/3£522

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ireland to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Tue 20/5

12:40-13:50

1 stop33h 10m

Seattle/Tacoma Intl

Fri 30/5

16:00-09:25

1 stop33h 25m

£287

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 16/5

12:15-17:50

1 stop13h 35m

Seattle/Tacoma Intl

Fri 30/5

23:30-11:05

1 stop27h 35m

£451

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 7/5

12:50-20:28

1 stop15h 38m

Seattle/Tacoma Intl

Tue 20/5

19:00-18:35

2 stops15h 35m

£504

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 16/5

15:20-16:59

Nonstop9h 39m

Seattle/Tacoma Intl

Fri 30/5

18:45-11:45

Nonstop9h 00m

£508

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 7/5

11:10-15:57

1 stop12h 47m

Seattle/Tacoma Intl

Tue 20/5

10:25-15:00

2 stops20h 35m

£520

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 20/4

12:00-20:48

1 stop16h 48m

Seattle/Tacoma Intl

Sat 26/4

07:35-10:45

1 stop19h 10m

£573

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 4/6

11:30-20:54

1 stop17h 24m

Seattle/Tacoma Intl

Wed 18/6

11:30-08:20

1 stop12h 50m

£581

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 4/6

11:30-12:58

2 stops33h 28m

Seattle/Tacoma Intl

Sat 7/6

07:05-10:00

2 stops42h 55m

£617

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 9/5

15:20-16:59

Nonstop9h 39m

Seattle/Tacoma Intl

Fri 30/5

13:30-10:15

1 stop12h 45m

£627

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 15/5

09:50-23:03

2 stops21h 13m

Seattle/Tacoma Intl

Thu 22/5

23:37-06:55

2 stops23h 18m

£630

Flights are sorted by cheapest return flights first.

Deals found on 31/3

Showing 1-10 of 14 results

Best time to book a flight from Ireland to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Ireland with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ireland to Seattle

What is the cheapest month to book a flight from Ireland to Seattle?

Currently, January is the cheapest month in which you can book a flight from Ireland to Seattle (average of £622). Flying from Ireland to Seattle in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IE to 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.

Rainfall in Seattle by month

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from Ireland to Seattle, such as Delta, KLM and SWISS. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

7,899 reviews

Delta

8.0

Very Good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,321 reviews

Delta

8.0

Very Good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS

7.5

Good

1,570 reviews

Delta

8.0

Very Good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France

7.4

Good

1,425 reviews

Delta

8.0

Very Good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,614 reviews

Delta

8.0

Very Good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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 center of the city.
How popular is this Ireland to Seattle flight route?
Flights from Ireland to Seattle/Tacoma Intl have been viewed 74 times in the past calendar month.
What are the most reliable airlines from Ireland to Seattle?
Before booking your flight to Seattle from Ireland, check out the most reliable airlines to get you to your destination on time: American Airlines (82%), Aer Lingus (82%), British Airways( 82%).
What are the cheapest flights from Ireland to Seattle?
The cheapest flight price from Ireland to Seattle is £503. On average you can expect to pay £1,094. The most popular route, (Dublin - Seattle/Tacoma Intl), can usually be booked for £661.
Can I find deals for flights from Ireland to Seattle that include hotel bookings?
Yes. In addition to deals on Ireland to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Ireland to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Seattle.
Can I find deals for business class flights from Ireland to Seattle?
Yes. Cheapflights offers flight deals from Ireland to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Ireland to Seattle?
Currently, January is the cheapest month in which you can book a flight from Ireland to Seattle (average of £622). Flying from Ireland to Seattle in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Tacoma

Leavenworth

Bothell

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Top 3 airlines flying from Ireland to Seattle

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£362	Average£654	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Icelandair	Cheapest£382	Average£510	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Aer Lingus	Cheapest£420	Average£628	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Fly with Cheapflights

How does Cheapflights help users find flights from Ireland to Seattle?

Cheapflights helps you search for flights from Ireland to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ireland to Seattle?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ireland to Seattle.

Can Cheapflights find flights from Ireland to Seattle with no change fees?

Yes, we can. To see specific flights from Ireland to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Ireland to Seattle become cheaper?

Of course! You can now track prices for flights from Ireland to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Ireland to Seattle from £267

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ireland to Seattle

Keep the following information in mind while searching for Ireland to Seattle flight deals. Data was last updated 31 March 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Find flight deals from Ireland to Seattle

Cheapest flights from Ireland to SeattleExplore the most affordable flight options available from Ireland to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 March 2025.

Explore the most affordable flight options available from Ireland to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 March 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ireland to Seattle that are best for you.

Best time to book a flight from Ireland to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Ireland with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ireland to Seattle

What is the cheapest month to book a flight from Ireland to Seattle?

What is the cheapest time of day to fly from IE to SEA?

Find hourly flight availability from Ireland to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 March 2025.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from Ireland to Seattle, such as Delta, KLM and SWISS. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ireland to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

How popular is this Ireland to Seattle flight route?

What are the most reliable airlines from Ireland to Seattle?

What are the cheapest flights from Ireland to Seattle?

Can I find deals for flights from Ireland to Seattle that include hotel bookings?

How can I find direct flights from Ireland to Seattle?

Can I find deals for business class flights from Ireland to Seattle?

What is the cheapest month to book a flight from Ireland to Seattle?

Travelling to a place near Ireland?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ireland to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Ireland to Seattle

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ireland to Seattle?

Why should you use Cheapflights to find cheap flight tickets from Ireland to Seattle?

Can Cheapflights find flights from Ireland to Seattle with no change fees?

Can Cheapflights notify me if prices for flights from Ireland to Seattle become cheaper?

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Cheapest flights from Ireland to Seattle
Explore the most affordable flight options available from Ireland to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 March 2025.