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Ireland

$268+ 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
May 3 — May 101
Sun 5/3
Sun 5/10
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 April 3, 2026.

This KLM deal was found by Cheapflights users on 3/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/161:35 pm
PWM
-
DUB
1 stop13h 10m
KLM
Mon 11/239:45 am
DUB
-
PWM
1 stop17h 38m
KLM
Deal found 3/29$546
This Delta deal was found by Cheapflights users on 3/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1610:00 am
PWM
-
DUB
1 stop17h 45m
Delta
Mon 11/239:45 am
DUB
-
PWM
2 stops31h 08m
Delta
Deal found 3/29$550
This Delta deal was found by Cheapflights users on 3/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:30 am
PWM
-
DUB
2 stops20h 50m
Delta
Sat 5/21:15 pm
DUB
-
PWM
1 stop16h 31m
Delta
Deal found 3/29$570
This KLM deal was found by Cheapflights users on 3/31. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/242:51 pm
PWM
-
DUB
2 stops14h 34m
KLM
Sat 5/21:15 pm
DUB
-
PWM
1 stop16h 31m
KLM
Deal found 3/31$581
This KLM deal was found by Cheapflights users on 4/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:51 pm
PWM
-
DUB
1 stop13h 24m
KLM
Fri 5/1511:00 am
DUB
-
PWM
1 stop17h 09m
KLM
Deal found 4/2$583
This Delta deal was found by Cheapflights users on 3/30. 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.
Mon 4/66:25 am
PWM
-
DUB
2 stops23h 00m
Delta
Sat 4/181:15 pm
DUB
-
PWM
2 stops27h 50m
Delta
Deal found 3/30$585
This Delta deal was found by Cheapflights users on 4/2. 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.
Sat 5/25:21 am
PWM
-
DUB
2 stops21h 34m
Delta
Fri 5/151:15 pm
DUB
-
PWM
1 stop16h 28m
Delta
Deal found 4/2$588
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Mon 8/248:15 pm
PWM
-
SNN
1 stop9h 00m
United Airlines
Wed 8/269:30 am
SNN
-
PWM
1 stop17h 31m
United Airlines
Deal found 3/30$708
This KAYAK deal was found by Cheapflights users on 3/31. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:10 pm
PWM
-
SNN
2 stops34h 05m
Lufthansa
Thu 5/712:30 pm
SNN
-
PWM
1 stop10h 53m
Lufthansa
Deal found 3/31$780
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Thu 4/304:50 pm
PWM
-
SNN
2 stops36h 25m
United Airlines
Thu 5/712:30 pm
SNN
-
PWM
2 stops26h 53m
United Airlines
Deal found 3/31$802
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Thu 7/306:00 am
PWM
-
SNN
1 stop20h 30m
United Airlines
Mon 8/1012:30 pm
SNN
-
PWM
1 stop10h 59m
United Airlines
Deal found 3/31$833
This United Airlines deal was found by Cheapflights users on 4/1. 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.
Sat 5/167:45 pm
PWM
-
SNN
1 stop9h 30m
United Airlines
Sat 5/239:30 am
SNN
-
PWM
1 stop13h 14m
United Airlines
Deal found 4/1$835

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 April 3, 2026.

Round-trip from

$581
(KLM)

One-way from

$268
(Delta)
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 April 3, 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

Fri 4/24

6:30 am-8:20 am

2 stops20h 50m

Dublin

Sat 5/2

1:15 pm-12:46 am

1 stop16h 31m

$570

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 4/24

2:51 pm-10:25 am

2 stops14h 34m

Dublin

Sat 5/2

1:15 pm-12:46 am

1 stop16h 31m

$581

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 5/2

5:21 am-7:55 am

2 stops21h 34m

Dublin

Fri 5/15

9:15 am-12:43 am

2 stops20h 28m

$606

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 5/16

6:00 am-10:00 am

2 stops23h 00m

Dublin

Sat 5/23

1:15 pm-12:43 am

1 stop16h 28m

$621

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 5/14

6:00 am-9:15 am

2 stops22h 15m

Dublin

Thu 5/21

10:00 am-11:09 pm

2 stops18h 09m

$621

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 9/12

2:35 pm-12:40 pm

2 stops17h 05m

Dublin

Fri 9/18

5:55 am-11:59 pm

2 stops23h 04m

$689
Quickest round-trip

PortlandShannon

PWM - SNN

PWMSNN

Portland

Mon 8/24

8:15 pm-10:15 am

1 stop9h 00m

Shannon

Wed 8/26

9:30 am-10:01 pm

1 stop17h 31m

$708

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 7/25

2:53 pm-9:15 am

1 stop13h 22m

Dublin

Fri 7/31

9:15 am-12:59 am

2 stops20h 44m

$716

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 7/30

6:00 am-7:30 am

1 stop20h 30m

Shannon

Mon 8/10

12:30 pm-6:29 pm

1 stop10h 59m

$833
Cheapest one-way

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 5/10

6:25 am-9:15 am

1 stop21h 50m

$268

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/29

Showing 1-10 of 15 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

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 $316). Flying from Portland, Maine to Ireland in June is currently the most expensive (average of $408). 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 April 3, 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
9,538 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

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
9,538 reviews
United Airlines
7.4
Good
9,538 reviews

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Food

6.6

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 Delta, KLM, and United Airlines fly from Portland, Maine to Ireland in about 9h. The time it takes to get you to your destination can typically vary by up to 11h 50m. The distance between Portland, Maine and Ireland is about 2805 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 $316). Flying from Portland, Maine to Ireland in June is currently the most expensive (average of $408). 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 April 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$511Average$770FlexibilityNo cancel feeOn-time69%

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