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Ireland

$360+ Cheap flights from Portland, ME (PWM) to Ireland

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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DUB
Jun 20 — Jun 271
Sat 6/20
Sat 6/27
1 adult, Economy
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Cheap flight deals from Portland to Ireland

Cheapest flights from Portland to Ireland
Explore the most affordable flight options available from Portland to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 21, 2026.

This Expedia deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/42:30 pm
PWM
-
DUB
1 stop13h 30m
JetBlue
Thu 7/911:30 am
DUB
-
PWM
1 stop17h 46m
JetBlue
Deal found 5/20$657
This KLM deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:35 pm
PWM
-
DUB
1 stop13h 10m
KLM
Tue 11/245:45 am
DUB
-
PWM
2 stops23h 04m
KLM
Deal found 5/18$705
This Air France deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/102:35 pm
PWM
-
DUB
2 stops14h 10m
Multiple Airlines
Tue 11/245:45 am
DUB
-
PWM
2 stops23h 04m
Multiple Airlines
Deal found 5/20$709
This KLM deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:05 am
PWM
-
DUB
1 stop21h 40m
KLM
Sat 8/2211:00 am
DUB
-
PWM
1 stop15h 31m
KLM
Deal found 5/19$713
This Air France deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/152:53 pm
PWM
-
DUB
2 stops14h 52m
Multiple Airlines
Sat 8/228:55 am
DUB
-
PWM
2 stops21h 04m
Multiple Airlines
Deal found 5/19$714
This Delta deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2312:50 pm
PWM
-
DUB
2 stops14h 05m
Delta
Fri 11/275:45 am
DUB
-
PWM
2 stops23h 04m
Delta
Deal found 5/19$718
This United Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:40 am
PWM
-
SNN
1 stop18h 50m
United Airlines
Thu 9/1012:30 pm
SNN
-
PWM
1 stop10h 59m
United Airlines
Deal found 5/19$731
This United Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/63:47 pm
PWM
-
SNN
1 stop13h 28m
United Airlines
Mon 9/1412:30 pm
SNN
-
PWM
1 stop10h 59m
United Airlines
Deal found 5/19$734
This Ovago deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:40 am
PWM
-
DUB
1 stop21h 20m
JetBlue
Sun 8/1611:30 am
DUB
-
PWM
1 stop17h 44m
JetBlue
Deal found 5/19$761
This British Airways deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/15:37 pm
PWM
-
DUB
2 stops15h 43m
Multiple Airlines
Mon 11/98:50 am
DUB
-
PWM
2 stops18h 57m
Multiple Airlines
Deal found 5/17$767
This KLM deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2412:50 pm
PWM
-
DUB
1 stop16h 10m
KLM
Wed 9/301:25 pm
DUB
-
PWM
2 stops15h 34m
KLM
Deal found 5/17$771
This United Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:16 pm
PWM
-
SNN
1 stop8h 59m
United Airlines
Mon 8/1012:30 pm
SNN
-
PWM
1 stop16h 00m
United Airlines
Deal found 5/20$801

Find flight deals from Portland to Ireland

Keep the following information in mind while searching for Portland to Ireland flight deals. Data was last updated May 21, 2026.

Round-trip from

$657
(Expedia)

One-way from

$360
(KAYAK)

Popular in

January

Cheapest in

February

Average price

$681
From Portland to Ireland
Search Deals
One-way flight from Portland to Ireland
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($119 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 21, 2026.
Use the filters below to find and compare flights from Portland to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 11/1

11:30 am-7:55 am

1 stop15h 25m

Dublin

Mon 11/9

5:45 am-11:49 pm

2 stops23h 04m

$705

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 11/10

1:35 pm-7:45 am

1 stop13h 10m

Dublin

Tue 11/24

5:45 am-11:49 pm

2 stops23h 04m

$705

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 11/10

2:35 pm-9:45 am

2 stops14h 10m

Dublin

Tue 11/24

5:45 am-11:49 pm

2 stops23h 04m

$709

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 11/4

11:30 am-7:55 am

1 stop15h 25m

Dublin

Sun 11/8

10:45 am-9:30 am

1 stop27h 45m

$713

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sun 9/6

6:00 am-7:30 am

1 stop20h 30m

Shannon

Thu 9/10

12:30 pm-11:32 pm

1 stop16h 02m

$731

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sun 9/6

9:49 am-7:30 am

2 stops16h 41m

Shannon

Mon 9/14

9:30 am-11:59 pm

2 stops19h 29m

$739

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 9/24

12:50 pm-10:00 am

1 stop16h 10m

Dublin

Wed 9/30

1:25 pm-11:59 pm

2 stops15h 34m

$771
Quickest round-trip

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 7/30

8:16 pm-10:15 am

1 stop8h 59m

Shannon

Mon 8/10

12:30 pm-11:30 pm

1 stop16h 00m

$801
Cheapest one-way

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 7/19

6:00 am-9:00 am

1 stop22h 00m

$365

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sun 7/12

2:59 pm-11:10 am

1 stop15h 11m

$463

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/20

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Best time to book a flight from Portland to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Portland 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 Portland to Ireland
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ireland. Reviews last updated May 21, 2026.
Read through reviews of airlines operating flights from Portland to Ireland, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,748 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,748 reviews
United Airlines
7.4
Good
9,748 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

Find useful and relevant information for your journey from Portland to Ireland. 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 from for flights from Portland to Ireland?

    Most people fly from Portland (PWM) if they book a flight from Portland to Ireland. Portland is conveniently located just 2.9 mi from Portland’s city center.

  • How long is the flight from Portland, Maine to Ireland?

    Airlines like KLM and United Airlines fly from Portland, Maine to Ireland in about 15h 25m. The time it takes to get you to your destination can typically vary by up to 5h 05m. The distance between Portland, Maine and Ireland is about 2901 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

  • How can I find direct flights from Portland to Ireland?

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

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

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

See more FAQs

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.

Top airline flying from Portland to Ireland

Discover the top airline that operate flights from Portland to Ireland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$606Average$883FlexibilityNo cancel feeOn-time69%

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