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Ireland

$518+ 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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DUB
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 11, 2025.

Round-trip from

$518
(Delta)

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 11, 2025.

This Delta deal was found by Cheapflights users on 9/10. 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 9/10$518
This Delta deal was found by Cheapflights users on 9/11. 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 11/242:30 pmPWM - DUB
1 stop13h 15mDelta
Tue 12/28:50 amDUB - PWM
2 stops36h 13mDelta
Deal found 9/11$536
This United Airlines deal was found by Cheapflights users on 9/10. 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 stop26h 59mUnited Airlines
Deal found 9/10$538
This Delta deal was found by Cheapflights users on 9/11. 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 11/256:35 amPWM - DUB
1 stop21h 10mDelta
Tue 12/21:25 pmDUB - PWM
2 stops31h 38mDelta
Deal found 9/11$541
This KLM deal was found by Cheapflights users on 9/9. 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 10/2211:00 amDUB - PWM
1 stop16h 19mKLM
Deal found 9/9$577
This Delta deal was found by Cheapflights users on 9/9. 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 10/2210:00 amDUB - PWM
2 stops31h 00mDelta
Deal found 9/9$581
This Delta deal was found by Cheapflights users on 9/11. 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 11/2712:48 pmPWM - DUB
2 stops14h 57mDelta
Tue 12/21:25 pmDUB - PWM
2 stops31h 38mDelta
Deal found 9/11$630
This Delta deal was found by Cheapflights users on 9/11. 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 11/286:35 amPWM - DUB
1 stop21h 10mDelta
Tue 12/21:25 pmDUB - PWM
2 stops31h 38mDelta
Deal found 9/11$631
This American Airlines deal was found by Cheapflights users on 9/9. 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 10/244:15 pmPWM - SNN
2 stops18h 35mAmerican Airlines
Fri 10/317:50 amSNN - PWM
2 stops16h 50mAmerican Airlines
Deal found 9/9$688
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Wed 11/1212:38 pmPWM - SNN
2 stops17h 52mAmerican Airlines
Sun 11/162:45 pmSNN - PWM
2 stops13h 09mAmerican Airlines
Deal found 9/9$758
This Air Canada deal was found by Cheapflights users on 9/9. 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.
Fri 10/2410:40 amPWM - SNN
3 stops19h 40mAir Canada
Fri 10/317:50 amSNN - PWM
3 stops19h 27mAir Canada
Deal found 9/9$1,251

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 11, 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

Wed 11/19

1:25 pm-7:45 am

1 stop13h 20m

Dublin

Thu 11/27

9:45 am-2:07 pm

2 stops33h 22m

$518

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 11/24

2:30 pm-8:45 am

1 stop13h 15m

Dublin

Tue 12/2

8:50 am-4:03 pm

2 stops36h 13m

$536

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 11/26

1:25 pm-7:45 am

1 stop13h 20m

Dublin

Tue 12/2

1:25 pm-4:03 pm

2 stops31h 38m

$536

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 11/19

3:00 pm-7:30 am

1 stop11h 30m

Dublin

Thu 11/27

10:40 am-2:12 pm

1 stop32h 32m

$538

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 11/25

6:35 am-8:45 am

1 stop21h 10m

Dublin

Tue 12/2

1:25 pm-4:03 pm

2 stops31h 38m

$541

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 3/4

6:30 am-9:20 am

2 stops21h 50m

Dublin

Sun 3/8

10:45 am-11:49 pm

1 stop17h 04m

$557

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 10/24

4:15 pm-3:50 pm

2 stops18h 35m

Shannon

Fri 10/31

7:50 am-8:40 pm

2 stops16h 50m

$688

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 11/12

12:38 pm-4:45 pm

2 stops23h 07m

Shannon

Sun 11/16

2:00 pm-11:59 pm

2 stops14h 59m

$758

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 10/24

10:40 am-11:20 am

3 stops19h 40m

Shannon

Fri 10/31

7:50 am-11:17 pm

3 stops19h 27m

$1,251

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

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 $924). 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 11, 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 11, 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
8,937 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
JetBlue
7.2
Good
2,913 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 Delta, American Airlines, and Air Canada fly from Portland, Maine to Ireland in about 13h 20m. The time it takes to get you to your destination can typically vary by up to 6h 20m. 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.

  • 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 $924). 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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Alternative routes for Portland to Ireland

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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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$471Average$848FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$556Average$626FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$575Average$710FlexibilityNo cancel feeOn-time69%

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