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Ireland

$337+ 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
Apr 3 — Apr 101
Fri 4/3
Fri 4/10
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 March 4, 2026.

This United Airlines deal was found by Cheapflights users on 3/1. 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 4/157:12 pm
PWM
-
SNN
1 stop10h 03m
United Airlines
Sat 4/2512:30 pm
SNN
-
PWM
2 stops38h 10m
United Airlines
Deal found 3/1$524
This Gotogate deal was found by Cheapflights users on 2/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:00 am
PWM
-
DUB
2 stops20h 45m
Air Canada
Tue 8/189:50 am
DUB
-
PWM
2 stops18h 41m
Air Canada
Deal found 2/27$564
This Gurufare deal was found by Cheapflights users on 2/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/232:19 pm
PWM
-
DUB
1 stop13h 41m
JetBlue
Tue 5/2611:40 am
DUB
-
PWM
1 stop30h 44m
JetBlue
Deal found 2/28$565
This United Airlines deal was found by Cheapflights users on 3/1. 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 5/157:50 pm
PWM
-
SNN
1 stop9h 25m
United Airlines
Sun 5/249:30 am
SNN
-
PWM
1 stop13h 14m
United Airlines
Deal found 3/1$570
This United Airlines deal was found by Cheapflights users on 2/27. 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 8/127:35 pm
PWM
-
DUB
1 stop10h 05m
United Airlines
Tue 8/189:50 am
DUB
-
PWM
2 stops19h 09m
United Airlines
Deal found 2/27$570
This American Airlines deal was found by Cheapflights users on 3/1. 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 3/316:29 pm
PWM
-
DUB
2 stops15h 06m
American Airlines
Thu 4/1612:40 pm
DUB
-
PWM
1 stop15h 47m
American Airlines
Deal found 3/1$571
This United Airlines deal was found by Cheapflights users on 2/27. 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 4/197:15 pm
PWM
-
DUB
1 stop10h 55m
United Airlines
Wed 4/299:50 am
DUB
-
PWM
2 stops29h 28m
United Airlines
Deal found 2/27$577
This American Airlines deal was found by Cheapflights users on 3/2. 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 3/1812:44 pm
PWM
-
DUB
1 stop15h 56m
American Airlines
Wed 3/2511:30 am
DUB
-
PWM
2 stops16h 04m
American Airlines
Deal found 3/2$578
This British Airways deal was found by Cheapflights users on 3/2. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:07 pm
PWM
-
DUB
2 stops16h 28m
Multiple Airlines
Tue 4/710:30 am
DUB
-
PWM
2 stops17h 57m
Multiple Airlines
Deal found 3/2$580
This United Airlines deal was found by Cheapflights users on 3/1. 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 4/157:12 pm
PWM
-
DUB
1 stop10h 58m
United Airlines
Wed 4/229:30 am
DUB
-
PWM
2 stops17h 10m
United Airlines
Deal found 3/1$585
This Cheapflightsfares deal was found by Cheapflights users on 3/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/162:17 pm
PWM
-
DUB
1 stop13h 43m
JetBlue
Wed 9/2311:40 am
DUB
-
PWM
1 stop15h 27m
JetBlue
Deal found 3/3$600
This United Airlines deal was found by Cheapflights users on 3/2. 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 4/167:12 pm
PWM
-
SNN
1 stop10h 03m
United Airlines
Thu 4/2312:30 pm
SNN
-
PWM
1 stop11h 07m
United Airlines
Deal found 3/2$611

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 March 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$524
(United Airlines)

One-way from

$337
(Justfly.com)

Popular in

June

Cheapest in

January

Average price

$492
Provider with most accurate pricing for Boston Logan Intl-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Dublin flights.
Search Deals
From Portland to Ireland
Search Deals
One-way flight from Portland to Ireland
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($84 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 4, 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

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 4/15

2:12 pm-10:15 am

2 stops15h 03m

Shannon

Sat 4/25

12:30 pm-9:40 pm

2 stops38h 10m

$524

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 5/15

7:50 pm-10:15 am

1 stop9h 25m

Shannon

Sun 5/24

9:30 am-5:44 pm

1 stop13h 14m

$570

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 4/19

7:15 pm-11:10 am

1 stop10h 55m

Dublin

Wed 4/29

9:50 am-10:18 am

2 stops29h 28m

$577

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 4/15

7:12 pm-11:10 am

1 stop10h 58m

Dublin

Wed 4/22

9:30 am-9:40 pm

2 stops17h 10m

$585

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 3/18

12:44 pm-9:40 am

2 stops16h 56m

Dublin

Wed 3/25

8:50 am-11:55 pm

2 stops19h 05m

$620

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 4/13

7:36 pm-10:40 am

1 stop10h 04m

Dublin

Mon 4/20

9:50 am-9:40 pm

2 stops16h 50m

$627

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 5/1

7:50 pm-10:15 am

1 stop9h 25m

Shannon

Tue 6/30

9:30 am-9:52 pm

1 stop17h 22m

$654

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 4/24

6:04 am-11:10 am

2 stops24h 06m

Dublin

Sat 5/2

9:50 am-9:19 pm

2 stops40h 29m

$658

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 5/23

2:19 pm-9:00 am

1 stop13h 41m

Dublin

Fri 5/29

11:40 am-1:24 pm

1 stop30h 44m

$664

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 7/30

6:30 am-11:10 am

1 stop23h 40m

Shannon

Mon 8/10

1:05 pm-11:59 pm

1 stop15h 54m

$674

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/28

Showing 1-10 of 22 resultsSorted by cheapest first
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3

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 $314). Flying from Portland, Maine to Ireland in June is currently the most expensive (average of $417). 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.

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 March 4, 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
9,382 reviews

Crew

8.1

Food

6.6

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,382 reviews
United Airlines
7.4
Good
9,382 reviews

Crew

8.1

Food

6.6

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 United Airlines fly from Portland, Maine to Ireland in about 15h 03m. The time it takes to get you to your destination can typically vary by up to . The distance between Portland, Maine and Ireland is about 2805 mi.

  • 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 $314). Flying from Portland, Maine to Ireland in June is currently the most expensive (average of $417). 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

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 March 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$534Average$690FlexibilityNo cancel feeOn-time69%

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