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Ireland

$325+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DUB
Sep 3 — Sep 101
Thu 9/3
Thu 9/10
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 August 4, 2026.

This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/282:45 pm
PWM
-
DUB
1 stop13h 15m
JetBlue
Fri 9/411:30 am
DUB
-
PWM
1 stop17h 55m
JetBlue
Deal found 7/30$650
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:00 am
PWM
-
DUB
1 stop22h 00m
JetBlue
Thu 9/311:30 am
DUB
-
PWM
1 stop17h 55m
JetBlue
Deal found 7/30$662
This Delta deal was found by Cheapflights users on 7/30. 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 11/104:03 pm
PWM
-
DUB
1 stop11h 42m
Delta
Tue 11/248:50 am
DUB
-
PWM
2 stops19h 43m
Delta
Deal found 7/30$702
This British Airways deal was found by Cheapflights users on 7/30. 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 11/1011:07 am
PWM
-
DUB
2 stops17h 28m
Multiple Airlines
Tue 11/248:50 am
DUB
-
PWM
2 stops19h 06m
Multiple Airlines
Deal found 7/30$705
This United Airlines deal was found by Cheapflights users on 8/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/102:05 pm
PWM
-
DUB
1 stop15h 15m
United Airlines
Tue 11/2412:05 pm
DUB
-
PWM
1 stop16h 54m
United Airlines
Deal found 8/3$706
This United Airlines deal was found by Cheapflights users on 7/30. 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 9/1010:50 am
PWM
-
DUB
2 stops15h 30m
United Airlines
Thu 9/178:50 am
DUB
-
PWM
1 stop10h 48m
United Airlines
Deal found 7/30$719
This Air Canada deal was found by Cheapflights users on 7/31. 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.
Tue 10/66:00 am
PWM
-
DUB
2 stops21h 15m
Air Canada
Tue 10/139:50 am
DUB
-
PWM
2 stops39h 32m
Air Canada
Deal found 7/31$721
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/283:45 pm
PWM
-
DUB
1 stop10h 45m
United Airlines
Fri 9/49:20 am
DUB
-
PWM
2 stops34h 14m
United Airlines
Deal found 7/30$722
This Delta deal was found by Cheapflights users on 8/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am
PWM
-
DUB
2 stops21h 20m
Delta
Tue 9/85:55 am
DUB
-
PWM
2 stops22h 34m
Delta
Deal found 8/2$724
This Cheapflightsfares deal was found by Cheapflights users on 8/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/11:20 pm
PWM
-
DUB
1 stop14h 40m
JetBlue
Tue 9/811:30 am
DUB
-
PWM
1 stop17h 40m
JetBlue
Deal found 8/2$725
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Mon 9/216:06 am
PWM
-
SNN
1 stop23h 09m
United Airlines
Thu 10/112:30 pm
SNN
-
PWM
1 stop12h 52m
United Airlines
Deal found 7/31$738
This United Airlines deal was found by Cheapflights users on 7/29. 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 8/277:40 am
PWM
-
SNN
1 stop18h 50m
United Airlines
Mon 8/3112:30 pm
SNN
-
PWM
1 stop16h 02m
United Airlines
Deal found 7/29$739

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 August 4, 2026.

Round-trip from

$650
(Expedia)

One-way from

$325
(American Airlines)
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 August 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

Cheapest round-trip

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 11/10

4:03 pm-8:45 am

1 stop11h 42m

Dublin

Tue 11/24

8:50 am-11:33 pm

2 stops19h 43m

$702

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 11/10

11:07 am-9:35 am

2 stops17h 28m

Dublin

Tue 11/24

8:50 am-10:56 pm

2 stops19h 06m

$705

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 11/10

2:05 pm-10:20 am

1 stop15h 15m

Dublin

Tue 11/24

12:05 pm-11:59 pm

1 stop16h 54m

$705

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 9/10

3:47 pm-7:30 am

1 stop10h 43m

Dublin

Thu 9/17

9:30 am-11:32 pm

1 stop19h 02m

$719

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/6

2:09 pm-8:45 am

1 stop13h 36m

Dublin

Wed 10/14

5:55 am-4:02 pm

2 stops15h 07m

$736

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 8/16

5:52 am-7:20 am

1 stop20h 28m

Dublin

Tue 8/25

9:50 am-5:42 pm

2 stops36h 52m

$738
Quickest round-trip

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sat 10/10

6:55 pm-10:15 am

1 stop10h 20m

Shannon

Tue 10/20

12:30 pm-6:12 pm

1 stop10h 42m

$739

PortlandShannon

PWM - SNN

PWMSNN

Portland

Mon 9/14

6:53 pm-10:15 am

1 stop10h 22m

Shannon

Mon 9/21

9:30 am-9:23 pm

1 stop16h 53m

$739

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sun 9/13

6:53 pm-10:15 am

1 stop10h 22m

Shannon

Sun 9/20

9:30 am-5:54 pm

1 stop13h 24m

$739

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/6

3:41 pm-11:10 am

1 stop14h 29m

Dublin

Thu 10/15

11:35 am-6:43 pm

1 stop12h 08m

$740

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/3

Showing 1-10 of 17 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 August 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
10,058 reviews

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
United Airlines
7.4
Good
10,058 reviews
United Airlines
7.4
Good
10,058 reviews

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.7

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

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 and United Airlines fly from Portland, Maine to Ireland in about 11h 42m. The time it takes to get you to your destination can typically vary by up to 3h 33m. 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 August 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$606Average$956FlexibilityNo cancel feeOn-time69%

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