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Ireland

$224+ 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
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
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 December 23, 2025.

This Delta deal was found by Cheapflights users on 12/22. 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 12/225:45 amPWM - DUB
1 stop21h 00mDelta
Wed 12/248:50 amDUB - PWM
2 stops18h 53mDelta
Deal found 12/22$1,274
This KLM deal was found by Cheapflights users on 12/22. 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 12/221:03 pmPWM - DUB
1 stop14h 42mKLM
Wed 12/249:45 amDUB - PWM
1 stop17h 58mKLM
Deal found 12/22$1,276
This Air Canada deal was found by Cheapflights users on 12/22. 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.
Mon 12/222:55 pmPWM - DUB
3 stops19h 45mAir Canada
Wed 12/248:45 amDUB - PWM
3 stops19h 37mAir Canada
Deal found 12/22$2,658

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 December 23, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$482
(KLM)

One-way from

$224
(KLM)

Popular in

June

Cheapest in

November

Average price

$635
Provider with most accurate pricing for Boston Logan Intl-Dublin flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Dublin flights.
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From Portland to Ireland
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One-way flight from Portland to Ireland
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Highest demand for flights based on searches. 12% potential increase in price ($79 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 23, 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 2/4

2:35 pm-8:45 am

1 stop13h 10m

Dublin

Wed 2/11

5:55 am-12:20 am

2 stops23h 25m

$482

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 1/21

2:35 pm-8:45 am

1 stop13h 10m

Dublin

Fri 1/30

1:25 pm-12:20 am

2 stops15h 55m

$482

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 2/5

3:58 pm-11:30 am

2 stops14h 32m

Shannon

Thu 2/12

7:50 am-10:51 pm

2 stops20h 01m

$484

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 2/5

2:35 pm-8:45 am

1 stop13h 10m

Dublin

Thu 2/12

10:45 am-12:18 am

1 stop18h 33m

$484

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 1/21

12:20 pm-8:45 am

2 stops15h 25m

Dublin

Fri 1/30

5:55 am-12:20 am

2 stops23h 25m

$486

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 1/21

3:58 pm-8:40 am

1 stop11h 42m

Dublin

Fri 1/30

11:30 am-10:54 pm

1 stop16h 24m

$555

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 4/24

4:45 pm-3:25 pm

2 stops17h 40m

Dublin

Sat 5/2

5:55 am-3:58 pm

2 stops15h 03m

$590

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 2/6

3:12 pm-7:30 am

1 stop11h 18m

Dublin

Fri 2/13

9:00 am-11:20 pm

2 stops19h 20m

$598

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 2/5

3:12 pm-7:30 am

1 stop11h 18m

Dublin

Thu 2/12

10:40 am-9:09 pm

1 stop15h 29m

$603

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 1/30

3:12 pm-7:30 am

1 stop11h 18m

Dublin

Tue 2/3

10:40 am-11:28 pm

2 stops17h 48m

$607

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 20 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 $313). Flying from Portland, Maine to Ireland in June is currently the most expensive (average of $425). 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 December 23, 2025.

A simple way to save on the total cost of your ticket is to fly from Portland, Maine to Ireland in the afternoon. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight at noon.

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 December 23, 2025.
Read through reviews of airlines operating flights from Portland to Ireland, such as United 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
9,105 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,105 reviews
United Airlines
7.4
Good
9,105 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
JetBlue
7.2
Good
2,897 reviews
United Airlines
7.4
Good
9,105 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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, American Airlines, and Delta fly from Portland, Maine to Ireland in about 13h 10m. The time it takes to get you to your destination can typically vary by up to 2h 15m. 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 $313). Flying from Portland, Maine to Ireland in June is currently the most expensive (average of $425). 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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Top 2 airlines flying from Portland to Ireland

Discover the top 2 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$556Average$605FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$575Average$688FlexibilityNo cancel feeOn-time69%

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