Dublin

$406+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DUB
Aug 23 — Aug 301
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Cheap 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 August 18, 2025.

Round-trip from

$538
(Expedia)

One-way from

$406
(Trip.com)

Popular in

June

Cheapest in

November

Average price

$848
From Portland to Dublin
One-way flight from Portland to Dublin
Highest demand for flights based on searches. 22% potential increase in price ($216 potential increase over avg. RT price).
Cheapest flight prices on average. 7% potential price decrease ($55 potential savings vs. average RT price).
Average for round-trip flights in August 2025

Find 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 August 18, 2025.

This Expedia deal was found by Cheapflights users on 8/17. 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.
Wed 10/12:17 pmPWM - DUB
1 stop13h 03mJetBlue
Wed 10/811:30 amDUB - PWM
1 stop15h 31mJetBlue
Deal found 8/17$538
This Expedia deal was found by Cheapflights users on 8/17. 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.
Sat 10/117:09 amPWM - DUB
1 stop20h 11mJetBlue
Sat 10/1811:30 amDUB - PWM
1 stop15h 32mJetBlue
Deal found 8/17$545
This JetBlue deal was found by Cheapflights users on 8/16. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/192:19 pmPWM - DUB
1 stop13h 01mJetBlue
Wed 8/2711:30 amDUB - PWM
1 stop17h 47mJetBlue
Deal found 8/16$673
This JetBlue deal was found by Cheapflights users on 8/16. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/212:19 pmPWM - DUB
1 stop13h 01mJetBlue
Wed 8/2711:30 amDUB - PWM
1 stop17h 47mJetBlue
Deal found 8/16$723
This United Airlines deal was found by Cheapflights users on 8/17. 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 10/113:45 pmPWM - DUB
2 stops13h 35mUnited Airlines
Sat 10/189:50 amDUB - PWM
2 stops36h 52mUnited Airlines
Deal found 8/17$728
This United Airlines deal was found by Cheapflights users on 8/17. 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 10/13:45 pmPWM - DUB
2 stops13h 35mUnited Airlines
Wed 10/812:30 pmDUB - PWM
1 stop12h 11mUnited Airlines
Deal found 8/17$747
This Gurufare deal was found by Cheapflights users on 8/16. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/226:10 amPWM - DUB
1 stop21h 10mJetBlue
Tue 8/2611:30 amDUB - PWM
1 stop17h 47mJetBlue
Deal found 8/16$752
This Air Canada deal was found by Cheapflights users on 8/17. 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.
Sat 10/1110:30 amPWM - DUB
3 stops16h 45mMultiple Airlines
Sat 10/189:50 amDUB - PWM
2 stops16h 54mMultiple Airlines
Deal found 8/17$753
This United Airlines deal was found by Cheapflights users on 8/16. 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 8/197:26 pmPWM - DUB
1 stop9h 54mUnited Airlines
Tue 8/269:50 amDUB - PWM
2 stops17h 09mUnited Airlines
Deal found 8/16$756
This Air Canada deal was found by Cheapflights users on 8/16. 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.
Thu 8/2110:50 amPWM - DUB
2 stops39h 55mAir Canada
Tue 8/269:20 amDUB - PWM
2 stops18h 43mAir Canada
Deal found 8/16$806

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 August 18, 2025.
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

Wed 10/1

2:17 pm-8:20 am

1 stop13h 03m

Dublin

Wed 10/8

11:30 am-10:01 pm

1 stop15h 31m

$538

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 10/11

7:09 am-8:20 am

1 stop20h 11m

Dublin

Sat 10/18

11:30 am-10:02 pm

1 stop15h 32m

$545

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 1/22

11:17 am-7:10 am

2 stops38h 53m

Dublin

Wed 2/4

9:00 am-11:17 pm

2 stops43h 17m

$549

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 1/22

4:48 pm-8:10 am

1 stop34h 22m

Dublin

Wed 2/4

9:00 am-2:27 pm

2 stops34h 27m

$561

PortlandDublin

PWM - DUB

PWMDUB

Portland

Thu 1/22

1:22 pm-8:40 am

1 stop14h 18m

Dublin

Wed 2/4

11:30 am-10:29 pm

1 stop15h 59m

$632

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 10/11

2:25 pm-10:20 am

1 stop14h 55m

Dublin

Sat 10/18

9:50 am-9:44 pm

2 stops40h 54m

$723

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 10/1

3:45 pm-10:20 am

2 stops13h 35m

Dublin

Wed 10/8

12:30 pm-7:41 pm

1 stop12h 11m

$747

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 10/11

10:30 am-8:15 am

3 stops16h 45m

Dublin

Sat 10/18

9:50 am-9:44 pm

2 stops16h 54m

$753

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 10/11

10:30 am-8:15 am

3 stops16h 45m

Dublin

Sat 10/18

9:50 am-11:20 pm

3 stops18h 30m

$753

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 10/1

2:02 pm-6:30 am

2 stops11h 28m

Dublin

Wed 10/8

11:45 am-10:48 pm

2 stops16h 03m

$761

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 17 results
1
2

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 $509). Flying from Portland, Maine to Dublin in June is currently the most expensive (average of $925). 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.

What is the cheapest time of day to fly from PWM to DUB?

Find hourly flight availability from Portland to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Portland, Maine to Dublin in the morning. If you’re flexible enough to do this you can expect to save up to 1% on your trip compared to booking a flight at noon.

How much does it cost to fly round-trip from Portland, Maine to Dublin?

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 August 18, 2025.
Peruse reviews from past customers who have flown with United Airlines, American 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.

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 $538, JetBlue can have you in Dublin from Portland, Maine in 13h 03m. 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, American Airlines ($471), JetBlue ($556), and United Airlines ($575) offers the cheapest pricing from Portland, Maine to Dublin. American Airlines is currently priced 35% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Portland, Maine to Dublin one-way?

    The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as $406. However, be on the lookout for offers from KLM and Delta, as they are both options that can get you from Portland, Maine to Dublin for a low price.

  • 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 $509). Flying from Portland, Maine to Dublin in June is currently the most expensive (average of $925). 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
Swords
Wicklow
Leixlip

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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.

Top 3 airlines flying from Portland to Dublin

Discover the top 3 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$471Average$848FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$556Average$626FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$575Average$710FlexibilityNo cancel feeOn-time69%

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