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Ireland

$257+ 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DUB
May 17 — May 241
Sun 5/17
Sun 5/24
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 April 17, 2026.

This KLM deal was found by Cheapflights users on 4/15. 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.
Mon 4/202:51 pm
PWM
-
DUB
1 stop13h 24m
KLM
Sun 5/31:15 pm
DUB
-
PWM
1 stop16h 31m
KLM
Deal found 4/15$545
This KLM deal was found by Cheapflights users on 4/16. 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 11/1010:00 am
PWM
-
DUB
1 stop17h 45m
KLM
Tue 11/249:40 am
DUB
-
PWM
1 stop17h 43m
KLM
Deal found 4/16$546
This Delta deal was found by Cheapflights users on 4/16. 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.
Tue 11/1012:50 pm
PWM
-
DUB
2 stops14h 55m
Delta
Tue 11/249:55 am
DUB
-
PWM
2 stops30h 58m
Delta
Deal found 4/16$551
This Delta deal was found by Cheapflights users on 4/14. 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 4/202:51 pm
PWM
-
DUB
1 stop13h 24m
Delta
Mon 4/2711:00 am
DUB
-
PWM
2 stops30h 05m
Delta
Deal found 4/14$555
This Delta deal was found by Cheapflights users on 4/16. 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.
Sun 4/265:21 am
PWM
-
DUB
2 stops21h 34m
Delta
Mon 5/410:00 am
DUB
-
PWM
2 stops18h 23m
Delta
Deal found 4/16$556
This Delta deal was found by Cheapflights users on 4/15. 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 4/2011:42 am
PWM
-
DUB
2 stops18h 03m
Delta
Sun 5/35:55 am
DUB
-
PWM
2 stops22h 29m
Delta
Deal found 4/15$564
This Delta deal was found by Cheapflights users on 4/13. 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.
Fri 4/246:30 am
PWM
-
DUB
2 stops20h 50m
Delta
Sat 5/21:15 pm
DUB
-
PWM
1 stop16h 31m
Delta
Deal found 4/13$571
This Air France deal was found by Cheapflights users on 4/13. 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.
Mon 4/132:51 pm
PWM
-
DUB
2 stops14h 54m
Multiple Airlines
Mon 4/2011:00 am
DUB
-
PWM
1 stop17h 23m
Multiple Airlines
Deal found 4/13$601
This KLM deal was found by Cheapflights users on 4/12. 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.
Fri 4/242:51 pm
PWM
-
DUB
1 stop13h 24m
KLM
Sat 5/21:15 pm
DUB
-
PWM
1 stop16h 31m
KLM
Deal found 4/12$602
This United Airlines deal was found by Cheapflights users on 4/12. 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.
Fri 9/46:00 am
PWM
-
SNN
1 stop20h 30m
United Airlines
Tue 9/812:30 pm
SNN
-
PWM
1 stop11h 24m
United Airlines
Deal found 4/12$781
This United Airlines deal was found by Cheapflights users on 4/13. 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 5/288:15 pm
PWM
-
SNN
1 stop9h 00m
United Airlines
Thu 6/412:30 pm
SNN
-
PWM
1 stop10h 55m
United Airlines
Deal found 4/13$917
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/318:15 pm
PWM
-
SNN
1 stop9h 00m
United Airlines
Sun 6/712:30 pm
SNN
-
PWM
1 stop10h 55m
United Airlines
Deal found 4/16$918

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 April 17, 2026.

Round-trip from

$606
(KLM)

One-way from

$257
(KLM)

Popular in

January

Cheapest in

February

Average price

$746
From Portland to Ireland
Search Deals
One-way flight from Portland to Ireland
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($109 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 17, 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

Wed 9/9

2:35 pm-10:25 am

2 stops14h 50m

Dublin

Tue 9/15

11:10 am-11:59 pm

2 stops17h 49m

$606

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 5/27

12:50 pm-10:00 am

1 stop16h 10m

Dublin

Sun 5/31

1:15 pm-12:49 am

1 stop16h 34m

$617

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 5/19

2:38 pm-10:00 am

1 stop14h 22m

Dublin

Tue 5/26

11:00 am-11:09 pm

1 stop17h 09m

$659

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 10/11

11:30 am-7:55 am

1 stop15h 25m

Dublin

Wed 10/14

10:00 am-11:53 am

2 stops30h 53m

$686

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 5/20

6:25 am-8:15 am

2 stops20h 50m

Dublin

Mon 5/25

5:55 am-4:07 pm

2 stops15h 12m

$767

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 9/4

6:00 am-7:30 am

1 stop20h 30m

Shannon

Tue 9/8

12:30 pm-6:54 pm

1 stop11h 24m

$781

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 8/16

8:15 pm-11:10 am

1 stop9h 55m

Dublin

Sat 8/22

9:50 am-6:54 pm

2 stops14h 04m

$820

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 6/17

6:30 am-8:15 am

2 stops20h 45m

Dublin

Mon 6/22

11:00 am-11:15 pm

1 stop17h 15m

$859

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 5/20

6:25 am-10:00 am

1 stop22h 35m

Dublin

Mon 5/25

11:00 am-11:09 pm

1 stop17h 09m

$910
Quickest round-trip

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sun 5/31

8:15 pm-10:15 am

1 stop9h 00m

Shannon

Sun 6/7

12:30 pm-6:25 pm

1 stop10h 55m

$918

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 22 resultsSorted by cheapest first
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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.

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, Delta, and United Airlines fly from Portland, Maine to Ireland in about 14h 50m. The time it takes to get you to your destination can typically vary by up to 5h 40m. 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

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