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Ireland

$325+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DUB
Aug 16 — Aug 231
Sun 8/16
Sun 8/23
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 July 17, 2026.

This Expedia deal was found by Cheapflights users on 7/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:00 am
PWM
-
DUB
1 stop22h 00m
JetBlue
Sat 8/2911:30 am
DUB
-
PWM
1 stop17h 55m
JetBlue
Deal found 7/14$633
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/139:49 am
PWM
-
DUB
1 stop16h 31m
United Airlines
Thu 8/209:20 am
DUB
-
PWM
2 stops34h 14m
United Airlines
Deal found 7/14$684
This Air Canada deal was found by Cheapflights users on 7/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/66:00 am
PWM
-
DUB
2 stops20h 10m
Air Canada
Thu 12/109:00 am
DUB
-
PWM
2 stops42h 57m
Air Canada
Deal found 7/12$698
This American Airlines deal was found by Cheapflights users on 7/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/103:53 pm
PWM
-
DUB
2 stops12h 42m
American Airlines
Tue 11/2411:30 am
DUB
-
PWM
2 stops16h 03m
American Airlines
Deal found 7/13$701
This Delta deal was found by Cheapflights users on 7/13. 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.
Tue 11/1010:00 am
PWM
-
DUB
1 stop17h 45m
Delta
Tue 11/248:50 am
DUB
-
PWM
2 stops18h 33m
Delta
Deal found 7/13$702
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/102:23 pm
PWM
-
DUB
1 stop14h 57m
United Airlines
Tue 11/2412:05 pm
DUB
-
PWM
1 stop16h 54m
United Airlines
Deal found 7/14$705
This Delta deal was found by Cheapflights users on 7/14. 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.
Thu 8/136:05 am
PWM
-
DUB
1 stop21h 40m
Delta
Wed 8/191:25 pm
DUB
-
PWM
2 stops16h 34m
Delta
Deal found 7/14$708
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:40 am
PWM
-
SNN
1 stop18h 50m
United Airlines
Wed 8/1912:30 pm
SNN
-
PWM
1 stop16h 02m
United Airlines
Deal found 7/14$709
This Air France deal was found by Cheapflights users on 7/17. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/102:53 pm
PWM
-
DUB
1 stop13h 22m
Multiple Airlines
Thu 8/205:55 am
DUB
-
PWM
2 stops15h 06m
Multiple Airlines
Deal found 7/17$709
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:38 pm
PWM
-
DUB
1 stop15h 02m
United Airlines
Wed 8/191:35 pm
DUB
-
PWM
1 stop14h 57m
United Airlines
Deal found 7/14$711
This United Airlines deal was found by Cheapflights users on 7/12. 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.
Sun 12/63:15 pm
PWM
-
DUB
1 stop11h 15m
United Airlines
Thu 12/109:00 am
DUB
-
PWM
2 stops18h 57m
United Airlines
Deal found 7/12$713
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:45 am
PWM
-
SNN
1 stop18h 30m
United Airlines
Fri 9/412:30 pm
SNN
-
PWM
1 stop10h 59m
United Airlines
Deal found 7/14$739

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 July 17, 2026.

Round-trip from

$633
(Expedia)

One-way from

$325
(American Airlines)
From Portland to Ireland
Search Deals
One-way flight from Portland to Ireland
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 July 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

Sun 12/6

6:00 am-7:10 am

2 stops20h 10m

Dublin

Thu 12/10

9:00 am-10:57 pm

2 stops42h 57m

$698

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 11/10

6:00 am-7:45 am

1 stop20h 45m

Dublin

Tue 11/24

5:45 am-11:49 pm

2 stops23h 04m

$702

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 8/13

7:40 am-7:30 am

1 stop18h 50m

Shannon

Wed 8/19

12:30 pm-11:32 pm

1 stop16h 02m

$709

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 8/13

7:40 am-9:45 am

1 stop21h 05m

Dublin

Thu 8/20

9:30 am-11:32 pm

1 stop19h 02m

$711

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 8/25

6:53 pm-7:45 am

2 stops31h 52m

Dublin

Wed 9/9

9:20 am-9:08 am

2 stops28h 48m

$711

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 9/3

2:53 pm-3:25 pm

2 stops19h 32m

Dublin

Sun 9/13

8:55 am-11:56 pm

2 stops20h 01m

$712

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 12/6

3:15 pm-7:30 am

1 stop11h 15m

Dublin

Thu 12/10

9:00 am-10:57 pm

2 stops18h 57m

$713

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 8/27

3:45 pm-10:15 am

1 stop13h 30m

Shannon

Thu 9/3

9:30 am-5:42 pm

1 stop13h 12m

$739
Quickest round-trip

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sun 8/30

6:53 pm-10:15 am

1 stop10h 22m

Shannon

Sun 9/6

9:30 am-5:42 pm

1 stop13h 12m

$739

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 8/28

6:53 pm-10:15 am

1 stop10h 22m

Shannon

Tue 9/1

9:30 am-5:42 pm

1 stop13h 12m

$739

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/13

Showing 1-10 of 20 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 July 17, 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
9,997 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
United Airlines
7.4
Good
9,997 reviews
United Airlines
7.4
Good
9,997 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this

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 Air Canada, Delta, and United Airlines fly from Portland, Maine to Ireland in about 18h 50m. The time it takes to get you to your destination can typically vary by up to 1h 55m. The distance between Portland, Maine and Ireland is about 2805 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 July 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$606Average$956FlexibilityNo cancel feeOn-time69%

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