How popular is this Ireland to Seattle flight route?

This flight path from Ireland to Seattle/Tacoma Intl was viewed by 2 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

One-way options have recently been found by users for as low as $272 on WestJet. Other airlines that offer cheap prices include Scandinavian Airlines from $426 and Icelandair from $477 one-way.

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

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

What are the most popular routes from Ireland to Seattle?

The most popular route from Ireland to Seattle is Dublin - Seattle/Tacoma Intl. You may also consider Cork - Seattle/Tacoma Intl or Shannon - Seattle/Tacoma Intl.

What are the cheapest flights from Ireland to Seattle?

On average you can expect to pay $804 for a flight from Ireland to Seattle. The cheapest flight overall is $535 while the most popular route, (Dublin - Seattle/Tacoma Intl) is currently priced at $374.

What are the most reliable airlines from Ireland to Seattle?

The top 3 most reliable airlines when flying from Ireland to Seattle are American Airlines (82%), Aer Lingus (82%) and British Airways (82%).

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

The most popular airlines flying from Ireland to Seattle are American Airlines, Aer Lingus and Icelandair. Something to consider prior to booking your flight.

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

Flights from Ireland to Seattle are found to be more expensive on Friday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seattle.

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

Travelers have found it’s best to book a flight 33 days in advance to save up to 84% 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 33 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 $648, or $830 for flights within the next 24 hours.

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

February can be a great time to fly to Seattle from Ireland with a flight ticket averaging about $745. Cheapflights users have found deals in the month of February for as cheap as $486. The most expensive prices can be found in the month of July.

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

If you book a flight to Seattle from Ireland, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle.

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 vacation 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.

$675+ Flights from Ireland to Seattle

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Ireland to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ireland to Seattle

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$374 (Flightnetwork)
One-way from	$272 (Kiwi.com)
Popular in	July
Cheapest in	February
Average price	$694
Good round-trip deal	$803 or less
Good one-way deal	$617 or less

Provider with most accurate pricing for Dublin-Seattle/Tacoma Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Dublin-Seattle/Tacoma Intl flights.

Search Deals

From Ireland to Seattle/Tacoma Intl

Search Deals

One-way flight from Ireland to Seattle/Tacoma Intl

Search Deals

Highest demand for flights based on searches. 21% potential increase in price ($205 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT 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

Price to beat on a one-way 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 March 28, 2025.

Thu 5/2212:40 pmDUB - SEA

1 stop33h 10mScandinavian Airlines

Fri 5/304:00 pmSEA - DUB

1 stop33h 25mScandinavian Airlines

Deal found 3/27

$374

Sun 5/1112:50 pmDUB - SEA

1 stop15h 38mMultiple Airlines

Sun 5/187:00 pmSEA - DUB

2 stops53h 10mMultiple Airlines

Deal found 3/27

$474

Sun 5/1112:15 pmDUB - SEA

1 stop16h 25mIcelandair

Sun 5/183:45 pmSEA - DUB

1 stop13h 30mIcelandair

Deal found 3/27

$560

Sun 5/1112:50 pmDUB - SEA

1 stop32h 08mWestJet

Sun 5/183:39 pmSEA - DUB

3 stops34h 21mWestJet

Deal found 3/27

$632

Wed 4/212:45 pmDUB - SEA

1 stop13h 35mBritish Airways

Sat 4/128:20 pmSEA - DUB

1 stop12h 20mBritish Airways

Deal found 3/26

$669

Wed 5/75:55 amDUB - SEA

1 stop18h 02mDelta

Tue 5/2010:25 amSEA - DUB

2 stops20h 35mDelta

Deal found 3/27

$670

Thu 4/311:45 amDUB - SEA

1 stop32h 48mAmerican Airlines

Fri 4/181:30 pmSEA - DUB

1 stop21h 50mAmerican Airlines

Deal found 3/26

$672

Fri 4/116:00 amDUB - SEA

1 stop19h 40mAir France

Sat 4/196:40 pmSEA - DUB

1 stop20h 00mAir France

Deal found 3/26

$677

Fri 4/412:40 pmDUB - SEA

1 stop18h 19mIberia

Fri 4/185:22 amSEA - DUB

1 stop20h 23mIberia

Deal found 3/27

$701

Wed 4/236:30 amDUB - SEA

1 stop13h 05mAer Lingus

Wed 4/306:45 pmSEA - DUB

Nonstop9h 00mAer Lingus

Deal found 3/27

$710

Thu 4/246:00 amORK - SEA

1 stop18h 00mKLM

Thu 5/11:30 pmSEA - ORK

1 stop17h 10mKLM

Deal found 3/27

$720

Wed 6/411:30 amDUB - SEA

1 stop17h 24mJetBlue

Wed 6/1811:30 amSEA - DUB

1 stop12h 50mJetBlue

Deal found 3/27

$750

Best flights from Ireland to Seattle
Discover carefully curated flight deals from Ireland to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 28, 2025.

Thu 5/2212:40 pmDUB - SEA

1 stop33h 10mScandinavian Airlines

Fri 5/304:00 pmSEA - DUB

1 stop33h 25mScandinavian Airlines

Deal found 3/27

$374

Sun 5/1112:50 pmDUB - SEA

1 stop15h 38mMultiple Airlines

Sun 5/187:00 pmSEA - DUB

2 stops53h 10mMultiple Airlines

Deal found 3/27

$474

Sun 5/1112:15 pmDUB - SEA

1 stop16h 25mIcelandair

Sun 5/183:45 pmSEA - DUB

1 stop13h 30mIcelandair

Deal found 3/27

$560

Sun 5/1112:50 pmDUB - SEA

1 stop32h 08mWestJet

Sun 5/183:39 pmSEA - DUB

3 stops34h 21mWestJet

Deal found 3/27

$632

Wed 4/212:45 pmDUB - SEA

1 stop13h 35mBritish Airways

Sat 4/128:20 pmSEA - DUB

1 stop12h 20mBritish Airways

Deal found 3/26

$669

Wed 5/75:55 amDUB - SEA

1 stop18h 02mDelta

Tue 5/2010:25 amSEA - DUB

2 stops20h 35mDelta

Deal found 3/27

$670

Thu 4/311:45 amDUB - SEA

1 stop32h 48mAmerican Airlines

Fri 4/181:30 pmSEA - DUB

1 stop21h 50mAmerican Airlines

Deal found 3/26

$672

Fri 4/116:00 amDUB - SEA

1 stop19h 40mAir France

Sat 4/196:40 pmSEA - DUB

1 stop20h 00mAir France

Deal found 3/26

$677

Fri 4/412:40 pmDUB - SEA

1 stop18h 19mIberia

Fri 4/185:22 amSEA - DUB

1 stop20h 23mIberia

Deal found 3/27

$701

Wed 4/236:30 amDUB - SEA

1 stop13h 05mAer Lingus

Wed 4/306:45 pmSEA - DUB

Nonstop9h 00mAer Lingus

Deal found 3/27

$710

Thu 4/246:00 amORK - SEA

1 stop18h 00mKLM

Thu 5/11:30 pmSEA - ORK

1 stop17h 10mKLM

Deal found 3/27

$720

Wed 6/411:30 amDUB - SEA

1 stop17h 24mJetBlue

Wed 6/1811:30 amSEA - DUB

1 stop12h 50mJetBlue

Deal found 3/27

$750

Last-minute flights from Ireland to Seattle
Discover last-minute flight deals from Ireland to Seattle. Data last updated March 28, 2025 and is based on user searches.

Wed 4/212:45 pmDUB - SEA

1 stop13h 35mBritish Airways

Sat 4/128:20 pmSEA - DUB

1 stop12h 20mBritish Airways

Deal found 3/26

$669

Wed 4/212:40 pmDUB - SEA

1 stop20h 08mFinnair

Wed 4/96:58 amSEA - DUB

1 stop18h 47mFinnair

Deal found 3/27

$774

Wed 4/29:50 amDUB - SEA

1 stop19h 51mAir Canada

Wed 4/93:05 pmSEA - DUB

2 stops17h 30mAir Canada

Deal found 3/27

$826

Thu 4/37:05 pmDUB - SEA

2 stops34h 22mScandinavian Airlines

Wed 4/1610:59 pmSEA - DUB

2 stops28h 31mScandinavian Airlines

Deal found 3/26

$546

Thu 4/312:15 pmDUB - SEA

1 stop13h 35mIcelandair

Fri 4/187:00 pmSEA - DUB

1 stop32h 05mIcelandair

Deal found 3/26

$628

Thu 4/35:55 amDUB - SEA

1 stop18h 05mDelta

Wed 4/161:30 pmSEA - DUB

1 stop17h 30mDelta

Deal found 3/26

$671

Thu 4/311:45 amDUB - SEA

1 stop32h 48mAmerican Airlines

Fri 4/181:30 pmSEA - DUB

1 stop21h 50mAmerican Airlines

Deal found 3/26

$672

Thu 4/33:20 pmDUB - SEA

Nonstop9h 39mAer Lingus

Thu 4/178:20 pmSEA - DUB

1 stop13h 55mAer Lingus

Deal found 3/26

$718

Thu 4/33:20 pmDUB - SEA

Nonstop9h 39mMultiple Airlines

Fri 4/181:30 pmSEA - DUB

1 stop12h 10mMultiple Airlines

Deal found 3/26

$789

Thu 4/39:50 amDUB - SEA

2 stops20h 13mLufthansa

Wed 4/1612:46 pmSEA - DUB

1 stop13h 34mLufthansa

Deal found 3/27

$854

Fri 4/412:40 pmDUB - SEA

1 stop18h 19mIberia

Fri 4/185:22 amSEA - DUB

1 stop20h 23mIberia

Deal found 3/27

$701

Fri 4/49:50 amDUB - SEA

1 stop19h 51mUnited Airlines

Fri 4/187:08 amSEA - DUB

2 stops18h 37mUnited Airlines

Deal found 3/27

$806

One-way flights from Ireland to Seattle
Search for one-way flight options from Ireland to Seattle. Find affordable one-way fares based on user searches. Data last updated March 28, 2025.

Tue 4/2911:30 amDUB - SEA

3 stops58h 39mWestJet

Deal found 3/26

$272

Tue 4/2911:30 amDUB - SEA

2 stops30h 23mMultiple Airlines

Deal found 3/26

$317

Thu 5/297:05 pmDUB - SEA

1 stop26h 45mScandinavian Airlines

Deal found 3/27

$426

Wed 5/2812:15 pmDUB - SEA

1 stop16h 25mIcelandair

Deal found 3/27

$477

Tue 4/293:20 pmDUB - SEA

Nonstop9h 39mAer Lingus

Deal found 3/27

$562

Sat 5/311:30 amDUB - SEA

1 stop16h 38mJetBlue

Deal found 3/27

$564

Sat 4/263:20 pmDUB - SEA

Nonstop9h 39mBritish Airways

Deal found 3/27

$573

Sun 5/183:20 pmDUB - SEA

Nonstop9h 39mAmerican Airlines

Deal found 3/27

$786

Tue 4/2911:35 amDUB - SEA

3 stops21h 23mUnited Airlines

Deal found 3/27

$1,207

Mon 3/3110:35 amDUB - SEA

1 stop38h 40mTurkish Airlines

Deal found 3/26

$1,515

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

Thu 5/22

12:40 pm-1:50 pm

1 stop33h 10m

Seattle/Tacoma Intl

Fri 5/30

4:00 pm-9:25 am

1 stop33h 25m

$374

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 5/11

12:50 pm-8:28 pm

1 stop15h 38m

Seattle/Tacoma Intl

Sun 5/18

7:00 pm-8:10 am

2 stops53h 10m

$474

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 5/11

12:15 pm-8:40 pm

1 stop16h 25m

Seattle/Tacoma Intl

Sun 5/18

3:45 pm-1:15 pm

1 stop13h 30m

$560

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 5/11

12:50 pm-12:58 pm

1 stop32h 08m

Seattle/Tacoma Intl

Sun 5/18

3:39 pm-10:00 am

3 stops34h 21m

$632

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 4/2

12:45 pm-6:20 pm

1 stop13h 35m

Seattle/Tacoma Intl

Sat 4/12

8:20 pm-4:40 pm

1 stop12h 20m

$669

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 5/7

5:55 am-3:57 pm

1 stop18h 02m

Seattle/Tacoma Intl

Tue 5/20

10:25 am-3:00 pm

2 stops20h 35m

$670

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 4/3

11:45 am-12:33 pm

1 stop32h 48m

Seattle/Tacoma Intl

Fri 4/18

1:30 pm-7:20 pm

1 stop21h 50m

$672

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 4/11

6:00 am-5:40 pm

1 stop19h 40m

Seattle/Tacoma Intl

Sat 4/19

6:40 pm-10:40 pm

1 stop20h 00m

$677

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 4/4

12:40 pm-10:59 pm

1 stop18h 19m

Seattle/Tacoma Intl

Fri 4/18

5:22 am-9:45 am

1 stop20h 23m

$701

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 4/23

6:30 am-11:35 am

1 stop13h 05m

Seattle/Tacoma Intl

Wed 4/30

6:45 pm-11:45 am

Nonstop9h 00m

$710

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 27 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 round-trip 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 $238). Flying from Ireland to Seattle in July is currently the most expensive (average of $411). 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 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Read reviews from past customers who have flown Delta, KLM and Finnair from Ireland to Seattle. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,897 reviews

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

7,897 reviews

Delta

8.0

Very good

7,897 reviews

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

7,897 reviews

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

Finnair

7.6

Good

1,267 reviews

Delta

8.0

Very good

7,897 reviews

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

1,424 reviews

Delta

8.0

Very good

7,897 reviews

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

8,603 reviews

Delta

8.0

Very good

7,897 reviews

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?
If you book a flight to Seattle from Ireland, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle.
How popular is this Ireland to Seattle flight route?
This flight path from Ireland to Seattle/Tacoma Intl was viewed by 2 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
What are the cheapest airlines to fly from Ireland to Seattle one-way?
One-way options have recently been found by users for as low as $272 on WestJet. Other airlines that offer cheap prices include Scandinavian Airlines from $426 and Icelandair from $477 one-way.
What are the most popular routes from Ireland to Seattle?
The most popular route from Ireland to Seattle is Dublin - Seattle/Tacoma Intl. You may also consider Cork - Seattle/Tacoma Intl or Shannon - Seattle/Tacoma Intl.
What are the most reliable airlines from Ireland to Seattle?
The top 3 most reliable airlines when flying from Ireland to Seattle are American Airlines (82%), Aer Lingus (82%) and British Airways (82%).
What are the cheapest flights from Ireland to Seattle?
On average you can expect to pay $804 for a flight from Ireland to Seattle. The cheapest flight overall is $535 while the most popular route, (Dublin - Seattle/Tacoma Intl) is currently priced at $374.
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 vacation 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 $238). Flying from Ireland to Seattle in July is currently the most expensive (average of $411). 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

SeaTac

Tukwila

Tacoma

Lakewood

Renton

Lacey

Ocean Shores

Leavenworth

Federal Way

Olympia

Cle Elum

Centralia

Mukilteo

Aberdeen

Shoreline

Lynnwood

Shelton

Silverdale

Redmond

Monroe

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Ireland to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest$556	Average$766	FlexibilityNo cancel fee	On-time76%
Aer Lingus	Cheapest$585	Average$880	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$684	Average$832	FlexibilityNo cancel fee	On-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

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.

$272+ Cheap flights from Ireland to Seattle (SEA)

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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ireland to Seattle with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 March 28, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way 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 March 28, 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 March 28, 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 March 28, 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 reviews from past customers who have flown Delta, KLM and Finnair from Ireland to Seattle. Reviews also offer insight into each airline's 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 cheapest airlines to fly from Ireland to Seattle one-way?

What are the most popular routes from Ireland to Seattle?

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?

Traveling 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

100% Free

Book with Flexibility

Travel Smart

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 March 28, 2025.