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$224+ 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
Mar 8 — Mar 151
Sun 3/8
Sun 3/15
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 February 6, 2026.

This KLM deal was found by Cheapflights users on 2/3. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/42:35 pm
PWM
-
DUB
1 stop13h 10m
KLM
Thu 2/121:25 pm
DUB
-
PWM
2 stops15h 53m
KLM
Deal found 2/3$483
This KLM deal was found by Cheapflights users on 2/2. 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.
Thu 2/265:31 am
PWM
-
DUB
1 stop21h 14m
KLM
Thu 3/51:25 pm
DUB
-
PWM
2 stops15h 53m
KLM
Deal found 2/2$484
This Air France deal was found by Cheapflights users on 2/3. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/42:35 pm
PWM
-
DUB
2 stops15h 15m
Multiple Airlines
Thu 2/121:25 pm
DUB
-
PWM
2 stops15h 53m
Multiple Airlines
Deal found 2/3$488
This Delta deal was found by Cheapflights users on 2/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/185:23 am
PWM
-
DUB
1 stop22h 22m
Delta
Wed 3/251:25 pm
DUB
-
PWM
2 stops28h 25m
Delta
Deal found 2/3$489
This Ovago deal was found by Cheapflights users on 2/4. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/45:31 am
PWM
-
DUB
1 stop21h 14m
Multiple Airlines
Wed 3/119:45 am
DUB
-
PWM
1 stop17h 37m
Multiple Airlines
Deal found 2/4$529
This American Airlines deal was found by Cheapflights users on 2/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/43:58 pm
PWM
-
DUB
1 stop11h 42m
American Airlines
Thu 2/1211:30 am
DUB
-
PWM
1 stop16h 29m
American Airlines
Deal found 2/3$554
This Flightnetwork deal was found by Cheapflights users on 2/4. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:00 am
PWM
-
DUB
2 stops21h 15m
Air Canada
Fri 5/229:20 am
DUB
-
PWM
2 stops52h 51m
Air Canada
Deal found 2/4$555
This United Airlines deal was found by Cheapflights users on 2/4. 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 5/67:50 pm
PWM
-
DUB
1 stop10h 20m
United Airlines
Fri 5/2212:30 pm
DUB
-
PWM
1 stop16h 20m
United Airlines
Deal found 2/4$558

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 February 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$484
(KLM)

One-way from

$224
(KLM)
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 February 6, 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

Thu 2/26

5:31 am-7:45 am

1 stop21h 14m

Dublin

Thu 3/5

1:25 pm-12:18 am

2 stops15h 53m

$484

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 2/26

5:31 am-7:45 am

2 stops21h 14m

Dublin

Thu 3/5

8:50 am-12:18 am

2 stops20h 28m

$488

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 3/18

5:23 am-7:45 am

1 stop22h 22m

Dublin

Wed 3/25

1:25 pm-1:50 pm

2 stops28h 25m

$489

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 3/4

2:35 pm-12:40 pm

2 stops17h 05m

Dublin

Wed 3/11

10:45 am-11:03 pm

1 stop16h 18m

$495

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 3/4

5:31 am-7:45 am

1 stop21h 14m

Dublin

Wed 3/11

9:45 am-11:22 pm

1 stop17h 37m

$529

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 2/25

7:31 pm-9:55 am

1 stop9h 24m

Dublin

Wed 3/4

1:35 pm-8:28 pm

1 stop11h 53m

$554

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 5/6

6:00 am-8:15 am

2 stops21h 15m

Dublin

Fri 5/22

9:20 am-9:11 am

2 stops52h 51m

$555

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 5/6

7:50 pm-11:10 am

1 stop10h 20m

Dublin

Fri 5/22

12:30 pm-11:50 pm

1 stop16h 20m

$558

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 3/19

2:30 pm-7:50 am

2 stops13h 20m

Dublin

Thu 3/26

10:45 am-11:59 pm

1 stop17h 14m

$559

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 5/10

5:51 pm-11:50 am

1 stop12h 59m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 17 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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 FlightHub the most. FlightHub 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 $423). 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 February 6, 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
9,241 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

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
9,241 reviews
United Airlines
7.4
Good
9,241 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

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
2,895 reviews
United Airlines
7.4
Good
9,241 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

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 $484, KLM can have you in Dublin from Portland, Maine in 21h 14m. Portland, Maine and Dublin are separated by a distance of 2901 mi.

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

    According to our current data, United Airlines ($534), and JetBlue ($556) 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 $423). 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 February 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$534Average$690FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$556Average$605FlexibilityNo cancel feeOn-time62%

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