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$493+ Cheap flights from Portland, ME (PWM) to Galway, Ireland

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SNN
Mar 19 — Mar 261
Thu 3/19
Thu 3/26
1 adult, Economy
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Cheap flight deals from Portland to Galway

Cheapest flights from Portland to Galway
Explore the most affordable flight options available from Portland to Galway. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 17, 2026.

This United Airlines deal was found by Cheapflights users on 2/14. 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.
Sun 4/129:49 am
PWM
-
SNN
2 stops19h 26m
United Airlines
Sat 4/1812:30 pm
SNN
-
PWM
1 stop11h 10m
United Airlines
Deal found 2/14$493
This United Airlines deal was found by Cheapflights users on 2/13. 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 57m
United Airlines
Deal found 2/13$520
This United Airlines deal was found by Cheapflights users on 2/16. 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.
Sat 4/256:00 am
PWM
-
SNN
2 stops23h 15m
United Airlines
Sat 5/212:30 pm
SNN
-
PWM
2 stops27h 23m
United Airlines
Deal found 2/16$660
This United Airlines deal was found by Cheapflights users on 2/16. 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.
Fri 9/188:15 pm
PWM
-
SNN
1 stop9h 00m
United Airlines
Sun 9/2712:30 pm
SNN
-
PWM
1 stop10h 57m
United Airlines
Deal found 2/16$662
This American Airlines deal was found by Cheapflights users on 2/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/27:00 am
PWM
-
SNN
2 stops17h 25m
American Airlines
Thu 4/91:45 pm
SNN
-
PWM
2 stops25h 22m
American Airlines
Deal found 2/16$693
This American Airlines deal was found by Cheapflights users on 2/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/183:03 pm
PWM
-
SNN
2 stops15h 17m
American Airlines
Sun 9/271:45 pm
SNN
-
PWM
2 stops15h 06m
American Airlines
Deal found 2/16$715
This American Airlines deal was found by Cheapflights users on 2/13. 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 7/302:39 pm
PWM
-
SNN
2 stops14h 46m
American Airlines
Mon 8/1011:00 am
SNN
-
PWM
2 stops17h 24m
American Airlines
Deal found 2/13$724
This KAYAK deal was found by Cheapflights users on 2/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:15 pm
PWM
-
SNN
1 stop10h 00m
Lufthansa
Sat 5/212:30 pm
SNN
-
PWM
1 stop29h 57m
Lufthansa
Deal found 2/16$749
This United Airlines deal was found by Cheapflights users on 2/16. 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.
Thu 4/22:12 pm
PWM
-
SNN
2 stops15h 03m
United Airlines
Thu 4/912:30 pm
SNN
-
PWM
1 stop11h 07m
United Airlines
Deal found 2/16$812

Find flight deals from Portland to Galway

Keep the following information in mind while searching for Portland to Galway flight deals. Data was last updated February 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$493
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$563
Provider with most accurate pricing for Boston Logan Intl-Shannon flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Shannon flights.
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From Portland to Galway
Search Deals
High demand for flights, 7% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Galway 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 17, 2026.
Use the filters below to find and compare flights from Portland to Galway that are best for you.

Fly from

Portland

Fly to

Galway

Route

Depart

Return

Price

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sun 4/12

9:49 am-10:15 am

2 stops19h 26m

Shannon

Sat 4/18

12:30 pm-6:40 pm

1 stop11h 10m

$493

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 7/30

6:00 am-7:30 am

1 stop20h 30m

Shannon

Mon 8/10

12:30 pm-6:27 pm

1 stop10h 57m

$520

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sat 4/25

7:15 pm-10:15 am

1 stop10h 00m

Shannon

Sat 5/2

12:30 pm-10:53 am

2 stops27h 23m

$660

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 4/2

7:00 am-5:25 am

2 stops17h 25m

Shannon

Thu 4/9

1:45 pm-10:07 am

2 stops25h 22m

$693

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 7/30

2:39 pm-10:25 am

2 stops14h 46m

Shannon

Mon 8/10

11:00 am-11:24 pm

2 stops17h 24m

$724

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/14

Best time to book a flight from Portland to Galway

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

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

Currently, November is the cheapest month in which you can book a flight from Portland, Maine to Galway (average of $338). Flying from Portland, Maine to Galway in June is currently the most expensive (average of $452). 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.

Related info for your journey

Find useful and relevant information for your journey from Portland to Galway. 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 Galway?

    Most people fly from Portland (PWM) if they book a flight from Portland to Galway. On average, Portland has 0 outbound flights to Galway per day from 0 airlines. Portland is conveniently located just 2.9 mi from Portland’s city center.

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

    United Airlines can get you from Portland, Maine to Galway in just under 19h 26m. Your travel time can differ by up to . Airlines will cover a distance of 2805 mi.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Portland, Maine to Galway (average of $338). Flying from Portland, Maine to Galway in June is currently the most expensive (average of $452). 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

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