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$194+ Cheap flights from Portland, ME (PWM) to Dublin (DUB)

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
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Portland to Dublin

Cheapest flights from Portland to Dublin
Explore the most affordable flight options available from Portland to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/175:40 pm
PWM
-
DUB
1 stop11h 40m
American Airlines
Tue 2/2411:30 am
DUB
-
PWM
1 stop16h 29m
American Airlines
Deal found 1/20$434
This Delta deal was found by Cheapflights users on 1/18. 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 1/266:17 am
PWM
-
DUB
1 stop21h 28m
Delta
Wed 2/45:55 am
DUB
-
PWM
2 stops21h 32m
Delta
Deal found 1/18$483
This Delta deal was found by Cheapflights users on 1/18. 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 1/266:17 am
PWM
-
DUB
1 stop21h 28m
Delta
Tue 2/310:45 am
DUB
-
PWM
1 stop32h 00m
Delta
Deal found 1/18$484
This Delta deal was found by Cheapflights users on 1/18. 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 1/2712:20 pm
PWM
-
DUB
2 stops15h 25m
Delta
Tue 2/31:25 pm
DUB
-
PWM
2 stops15h 55m
Delta
Deal found 1/18$487
This Delta deal was found by Cheapflights users on 1/18. 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.
Thu 1/296:16 am
PWM
-
DUB
2 stops20h 44m
Delta
Wed 2/410:45 am
DUB
-
PWM
1 stop18h 35m
Delta
Deal found 1/18$489
This American Airlines deal was found by Cheapflights users on 1/19. 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.
Mon 2/96:00 am
PWM
-
DUB
1 stop21h 40m
American Airlines
Mon 2/2311:30 am
DUB
-
PWM
1 stop16h 29m
American Airlines
Deal found 1/19$490
This Delta deal was found by Cheapflights users on 1/18. 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 1/306:17 am
PWM
-
DUB
2 stops20h 48m
Delta
Sun 2/18:50 am
DUB
-
PWM
2 stops33h 55m
Delta
Deal found 1/18$492
This Air Canada deal was found by Cheapflights users on 1/18. 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 1/267:27 pm
PWM
-
DUB
2 stops30h 43m
Air Canada
Mon 2/29:00 am
DUB
-
PWM
2 stops33h 56m
Air Canada
Deal found 1/18$516
This American Airlines deal was found by Cheapflights users on 1/18. 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.
Thu 1/2912:40 pm
PWM
-
DUB
1 stop15h 00m
American Airlines
Sun 2/111:30 am
DUB
-
PWM
1 stop16h 24m
American Airlines
Deal found 1/18$534
This United Airlines deal was found by Cheapflights users on 1/18. 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 1/303:12 pm
PWM
-
DUB
1 stop11h 18m
United Airlines
Wed 2/49:00 am
DUB
-
PWM
2 stops34h 39m
United Airlines
Deal found 1/18$536
This American Airlines deal was found by Cheapflights users on 1/19. 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.
Fri 4/247:07 am
PWM
-
DUB
1 stop17h 03m
American Airlines
Sat 5/211:35 am
DUB
-
PWM
1 stop16h 35m
American Airlines
Deal found 1/19$539

Find flight deals from Portland to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$434
(American Airlines)

One-way from

$194
(American Airlines)
Provider with most accurate pricing for Portland-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Dublin flights.
Search Deals
From Portland to Dublin
Search Deals
One-way flight from Portland to Dublin
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Dublin 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 January 21, 2026.
Use the filters below to find and compare flights from Portland to Dublin that are best for you.

Fly from

Portland

Fly to

Dublin

Route

Depart

Return

Price

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 2/17

5:40 pm-10:20 am

1 stop11h 40m

Dublin

Tue 2/24

11:30 am-10:59 pm

1 stop16h 29m

$434

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 1/28

2:35 pm-8:45 am

1 stop13h 10m

Dublin

Tue 2/3

8:50 am-12:20 am

2 stops20h 30m

$483

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 1/27

2:35 pm-8:45 am

1 stop13h 10m

Dublin

Wed 2/4

5:55 am-10:27 pm

2 stops21h 32m

$483

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 1/27

6:17 am-8:45 am

1 stop21h 28m

Dublin

Mon 2/2

1:25 pm-1:45 pm

2 stops29h 20m

$483

PortlandDublin

PWM - DUB

PWMDUB

Portland

Mon 1/26

6:17 am-8:45 am

1 stop21h 28m

Dublin

Wed 2/4

5:55 am-10:27 pm

2 stops21h 32m

$483

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 1/28

6:16 am-8:45 am

1 stop21h 29m

Dublin

Wed 2/4

10:45 am-12:20 am

1 stop18h 35m

$484

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 1/27

6:17 am-8:45 am

1 stop21h 28m

Dublin

Tue 2/3

10:45 am-12:20 am

1 stop18h 35m

$484

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 5/10

5:45 pm-11:50 am

1 stop13h 05m

$194

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 4/15

7:07 am-5:10 am

1 stop17h 03m

$194

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 5/10

6:00 am-8:15 am

2 stops21h 15m

$233

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 13 results
1
2

Compare providers for flights from Portland to Dublin

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Dublin in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland, Maine-Dublin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Dublin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Dublin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland, Maine-Dublin flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland, Maine-Dublin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin 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 Dublin

What is the cheapest month to book a flight from Portland, Maine to Dublin?

Currently, November is the cheapest month in which you can book a flight from Portland, Maine to Dublin (average of $313). Flying from Portland, Maine to Dublin in June is currently the most expensive (average of $422). 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 Dublin

Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated January 21, 2026.
Peruse reviews from past customers who have flown with United Airlines and JetBlue from Portland to Dublin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,191 reviews

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

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
9,191 reviews
United Airlines
7.4
Good
9,191 reviews

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

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
JetBlue
7.2
Good
2,891 reviews
United Airlines
7.4
Good
9,191 reviews

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

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 Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portland, Maine to Dublin?

    For as low as $434, American Airlines can have you in Dublin from Portland, Maine in 11h 40m. Portland, Maine and Dublin are separated by a distance of 2901 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Portland, Maine to Dublin round-trip?

    According to our current data, JetBlue ($556), and United Airlines ($575) offers the cheapest pricing from Portland, Maine to Dublin.

  • Can I find deals for flights from Portland to Dublin that include hotel bookings?

    Yes. In addition to deals on Portland to Dublin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Dublin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Dublin.

  • Can I find deals for business class flights from Portland to Dublin?

    Yes. Cheapflights offers flight deals from Portland to Dublin 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 Dublin?

    Currently, November is the cheapest month in which you can book a flight from Portland, Maine to Dublin (average of $313). Flying from Portland, Maine to Dublin in June is currently the most expensive (average of $422). 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

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Maynooth
Castleknock
Leixlip

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portland to Dublin

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Dublin flights
Boston to Shannon flights
Boston to Cork flights
Bangor to Dublin flights
Portland to Shannon flights
Boston to Milltown (Kerry) flights

Top 2 airlines flying from Portland to Dublin

Discover the top 2 airlines that operate flights from Portland to Dublin. 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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$556Average$605FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$575Average$690FlexibilityNo cancel feeOn-time69%

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