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Ireland

$496+ Cheap flights from Portland, ME (PWM) to Ireland

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DUB
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Portland to Ireland

Keep the following information in mind while searching for Portland to Ireland flight deals. Data was last updated September 17, 2025.

Round-trip from

$496
(KLM)

Popular in

June

Cheapest in

November

Average price

$680
From Portland to Ireland
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($220 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find 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 September 17, 2025.

This KLM deal was found by Cheapflights users on 9/16. 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.
Sun 10/196:50 amPWM - DUB
1 stop21h 25mKLM
Tue 11/410:45 amDUB - PWM
1 stop18h 20mKLM
Deal found 9/16$496
This KLM deal was found by Cheapflights users on 9/17. 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.
Tue 11/112:30 pmPWM - DUB
1 stop13h 15mKLM
Tue 11/1810:45 amDUB - PWM
1 stop18h 09mKLM
Deal found 9/17$503
This KLM deal was found by Cheapflights users on 9/17. 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.
Tue 11/112:30 pmPWM - DUB
2 stops13h 50mMultiple Airlines
Tue 11/1810:45 amDUB - PWM
1 stop18h 09mMultiple Airlines
Deal found 9/17$507
This Delta deal was found by Cheapflights users on 9/16. 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.
Wed 11/196:00 amPWM - DUB
1 stop20h 45mDelta
Thu 11/279:45 amDUB - PWM
2 stops33h 22mDelta
Deal found 9/16$518
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 11/193:00 pmPWM - DUB
1 stop11h 30mUnited Airlines
Thu 11/2712:05 pmDUB - PWM
1 stop11h 54mUnited Airlines
Deal found 9/16$532
This KLM deal was found by Cheapflights users on 9/17. 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.
Fri 11/142:30 pmPWM - DUB
1 stop13h 15mKLM
Tue 11/1810:45 amDUB - PWM
1 stop18h 09mKLM
Deal found 9/17$553
This Delta deal was found by Cheapflights users on 9/15. 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.
Thu 10/306:00 amPWM - DUB
2 stops21h 45mDelta
Thu 11/69:45 amDUB - PWM
2 stops31h 15mDelta
Deal found 9/15$557
This American Airlines deal was found by Cheapflights users on 9/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/143:52 pmPWM - SNN
2 stops14h 38mAmerican Airlines
Tue 11/187:50 amSNN - PWM
2 stops20h 04mAmerican Airlines
Deal found 9/17$569
This KLM deal was found by Cheapflights users on 9/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/132:38 pmPWM - DUB
1 stop13h 37mKLM
Wed 10/221:15 pmDUB - PWM
1 stop15h 50mKLM
Deal found 9/14$577
This American Airlines deal was found by Cheapflights users on 9/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/143:52 pmPWM - DUB
2 stops13h 23mAmerican Airlines
Tue 11/1811:30 amDUB - PWM
1 stop16h 24mAmerican Airlines
Deal found 9/17$580
This Delta deal was found by Cheapflights users on 9/14. 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 10/132:38 pmPWM - DUB
1 stop13h 37mDelta
Wed 10/2211:00 amDUB - PWM
2 stops28h 36mDelta
Deal found 9/14$581
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:22 pmPWM - DUB
1 stop10h 58mUnited Airlines
Thu 11/612:05 pmDUB - PWM
1 stop16h 54mUnited Airlines
Deal found 9/15$582

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 September 17, 2025.
Use the filters below to find and compare flights from Portland to Ireland that are best for you.

Fly from

Portland

Fly to

Ireland

Route

Depart

Return

Price

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 10/19

6:50 am-9:15 am

1 stop21h 25m

Dublin

Tue 11/4

10:45 am-12:05 am

1 stop18h 20m

$496

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 10/19

6:01 am-8:45 am

2 stops21h 44m

Dublin

Tue 11/4

9:45 am-10:49 am

2 stops30h 04m

$496

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 11/11

6:00 am-7:45 am

2 stops20h 45m

Dublin

Tue 11/18

9:45 am-12:08 pm

2 stops31h 23m

$507

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 11/19

6:00 am-7:45 am

1 stop20h 45m

Dublin

Thu 11/27

9:45 am-2:07 pm

2 stops33h 22m

$518

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sun 3/1

1:16 pm-11:30 am

2 stops17h 14m

Shannon

Thu 3/12

7:50 am-10:32 pm

2 stops18h 42m

$519

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 11/19

3:00 pm-7:30 am

1 stop11h 30m

Dublin

Thu 11/27

12:05 pm-6:59 pm

1 stop11h 54m

$532

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 3/4

2:35 pm-8:45 am

1 stop13h 10m

Dublin

Sun 3/8

10:45 am-11:49 pm

1 stop17h 04m

$552

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 11/14

2:30 pm-8:45 am

1 stop13h 15m

Dublin

Tue 11/18

9:45 am-12:08 pm

2 stops31h 23m

$557

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 10/30

6:00 am-7:45 am

2 stops21h 45m

Dublin

Thu 11/6

10:45 am-12:05 am

1 stop18h 20m

$557

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 11/14

3:52 pm-11:30 am

2 stops14h 38m

Shannon

Tue 11/18

7:50 am-10:54 pm

2 stops20h 04m

$569

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 15 results
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

What is the cheapest month to book a flight from Portland, Maine to Ireland?

Currently, November is the cheapest month in which you can book a flight from Portland, Maine to Ireland (average of $509). Flying from Portland, Maine to Ireland in June is currently the most expensive (average of $923). 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 PWM to IE?

Find hourly flight availability from Portland to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland, Maine to Ireland as you normally would.

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 September 17, 2025.
Read through reviews of airlines operating flights from Portland to Ireland, such as United Airlines, American Airlines, and JetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
JetBlue
7.2
Good
2,914 reviews
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

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 American Airlines fly from Portland, Maine to Ireland in about 17h 14m. The time it takes to get you to your destination can typically vary by up to 4h 30m. 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.

  • What is the cheapest month to book a flight from Portland, Maine to Ireland?

    Currently, November is the cheapest month in which you can book a flight from Portland, Maine to Ireland (average of $509). Flying from Portland, Maine to Ireland in June is currently the most expensive (average of $923). 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

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Portland to Ireland

Discover the top 3 airlines 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$471Average$848FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$556Average$622FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$575Average$710FlexibilityNo cancel feeOn-time69%

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