HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ireland

$343+ 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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DUB
Jul 24 — Jul 311
Fri 7/24
Fri 7/31
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Ireland with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 24, 2026.

This United Airlines deal was found by Cheapflights users on 6/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:47 am
PWM
-
DUB
1 stop18h 23m
United Airlines
Mon 11/169:00 am
DUB
-
PWM
2 stops34h 20m
United Airlines
Deal found 6/22$680
This United Airlines deal was found by Cheapflights users on 6/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:53 pm
PWM
-
DUB
2 stops31h 52m
United Airlines
Mon 8/319:50 am
DUB
-
PWM
2 stops36h 52m
United Airlines
Deal found 6/22$683
This Air Canada deal was found by Cheapflights users on 6/20. 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.
Wed 12/23:15 pm
PWM
-
DUB
2 stops34h 55m
Air Canada
Sun 12/69:00 am
DUB
-
PWM
2 stops36h 09m
Air Canada
Deal found 6/20$688
This American Airlines deal was found by Cheapflights users on 6/23. 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
1 stop11h 43m
American Airlines
Deal found 6/23$696
This Delta deal was found by Cheapflights users on 6/24. 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 11/106:00 am
PWM
-
DUB
1 stop20h 45m
Delta
Tue 11/245:45 am
DUB
-
PWM
2 stops23h 04m
Delta
Deal found 6/24$702
This United Airlines deal was found by Cheapflights users on 6/21. 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 12/25:06 pm
PWM
-
DUB
1 stop9h 24m
United Airlines
Sun 12/69:00 am
DUB
-
PWM
2 stops18h 57m
United Airlines
Deal found 6/21$703
This American Airlines deal was found by Cheapflights users on 6/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:30 am
PWM
-
DUB
1 stop20h 00m
American Airlines
Mon 8/311:45 pm
DUB
-
PWM
1 stop12h 36m
American Airlines
Deal found 6/22$711
This United Airlines deal was found by Cheapflights users on 6/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:16 pm
PWM
-
SNN
1 stop8h 59m
United Airlines
Mon 8/1012:30 pm
SNN
-
PWM
1 stop16h 00m
United Airlines
Deal found 6/22$739
This United Airlines deal was found by Cheapflights users on 6/20. 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 10/46:55 pm
PWM
-
SNN
1 stop10h 20m
United Airlines
Sat 10/1012:30 pm
SNN
-
PWM
1 stop12h 30m
United Airlines
Deal found 6/20$844
This United Airlines deal was found by Cheapflights users on 6/21. 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 8/58:15 pm
PWM
-
SNN
1 stop9h 00m
United Airlines
Wed 8/1212:30 pm
SNN
-
PWM
1 stop16h 02m
United Airlines
Deal found 6/21$852

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 June 24, 2026.

Round-trip from

$680
(United Airlines)

One-way from

$343
(Gotogate)
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 June 24, 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

Wed 12/2

3:15 pm-7:30 am

1 stop11h 15m

Dublin

Sun 12/6

9:00 am-9:27 pm

2 stops41h 27m

$680

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 11/13

8:47 am-8:10 am

1 stop18h 23m

Dublin

Mon 11/16

9:00 am-2:20 pm

2 stops34h 20m

$680

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 11/10

10:00 am-8:45 am

1 stop17h 45m

Dublin

Tue 11/24

8:50 am-10:23 pm

2 stops18h 33m

$702

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 11/13

10:00 am-8:45 am

1 stop17h 45m

Dublin

Mon 11/16

10:45 am-11:49 pm

1 stop18h 04m

$707

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 10/22

6:00 am-8:45 am

1 stop21h 45m

Dublin

Tue 10/27

5:45 am-11:49 pm

2 stops22h 04m

$733
Quickest round-trip

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 7/30

8:16 pm-10:15 am

1 stop8h 59m

Shannon

Mon 8/10

12:30 pm-11:30 pm

1 stop16h 00m

$739

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 8/5

6:00 am-7:30 am

1 stop20h 30m

Shannon

Wed 8/12

9:30 am-9:23 pm

1 stop16h 53m

$739

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sun 10/4

6:00 am-10:15 am

2 stops23h 15m

Shannon

Sat 10/10

12:30 pm-8:00 pm

1 stop12h 30m

$848
Cheapest one-way

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 10/10

7:57 am-8:15 am

2 stops43h 18m

$343

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 10/10

7:25 pm-7:20 am

1 stop30h 55m

$345

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/19

Showing 1-10 of 16 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 June 24, 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
9,881 reviews

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

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
9,881 reviews
United Airlines
7.4
Good
9,881 reviews

Crew

8.1

Food

6.6

Comfort

7.3

Boarding

7.7

Entertainment

7.1

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 United Airlines and Delta fly from Portland, Maine to Ireland in about 11h 15m. The time it takes to get you to your destination can typically vary by up to 6h 30m. 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.

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 June 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$606Average$956FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights