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$487+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SNN
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 January 29, 2026.

This American Airlines deal was found by Cheapflights users on 1/27. 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 2/245:40 pm
PWM
-
SNN
2 stops18h 05m
American Airlines
Tue 3/37:50 am
SNN
-
PWM
2 stops19h 40m
American Airlines
Deal found 1/27$487
This KLM deal was found by Cheapflights users on 1/27. 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 9/72:35 pm
PWM
-
SNN
1 stop15h 35m
KLM
Fri 9/111:05 pm
SNN
-
PWM
1 stop15h 54m
KLM
Deal found 1/27$489
This United Airlines deal was found by Cheapflights users on 1/27. 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 9/76:00 am
PWM
-
SNN
1 stop20h 30m
United Airlines
Fri 9/119:30 am
SNN
-
PWM
2 stops18h 27m
United Airlines
Deal found 1/27$493
This United Airlines deal was found by Cheapflights users on 1/28. 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 5/14:45 pm
PWM
-
SNN
2 stops36h 30m
United Airlines
Tue 5/1212:30 pm
SNN
-
PWM
1 stop10h 53m
United Airlines
Deal found 1/28$504
This KLM deal was found by Cheapflights users on 1/27. 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 7/302:35 pm
PWM
-
SNN
1 stop15h 35m
KLM
Mon 8/101:05 pm
SNN
-
PWM
1 stop15h 54m
KLM
Deal found 1/27$520
This KLM deal was found by Cheapflights users on 1/27. 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 7/302:35 pm
PWM
-
SNN
1 stop15h 35m
Multiple Airlines
Mon 8/101:05 pm
SNN
-
PWM
2 stops32h 10m
Multiple Airlines
Deal found 1/27$529
This American Airlines deal was found by Cheapflights users on 1/28. 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 2/2512:29 pm
PWM
-
SNN
2 stops18h 01m
American Airlines
Wed 3/42:00 pm
SNN
-
PWM
2 stops14h 50m
American Airlines
Deal found 1/28$684
This American Airlines deal was found by Cheapflights users on 1/28. 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 2/2312:29 pm
PWM
-
SNN
2 stops18h 01m
American Airlines
Fri 2/272:45 pm
SNN
-
PWM
2 stops24h 55m
American Airlines
Deal found 1/28$696
This Air Canada deal was found by Cheapflights users on 1/28. 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 2/236:00 am
PWM
-
SNN
3 stops24h 30m
Air Canada
Fri 2/277:50 am
SNN
-
PWM
3 stops20h 30m
Air Canada
Deal found 1/28$698
This American Airlines deal was found by Cheapflights users on 1/28. 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 5/16:00 am
PWM
-
SNN
2 stops18h 25m
American Airlines
Tue 5/127:30 am
SNN
-
PWM
2 stops16h 28m
American Airlines
Deal found 1/28$700
This Air Canada deal was found by Cheapflights users on 1/27. 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.
Tue 2/246:00 am
PWM
-
SNN
3 stops24h 30m
Air Canada
Tue 3/37:50 am
SNN
-
PWM
3 stops20h 30m
Air Canada
Deal found 1/27$703

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$487
(American Airlines)
Provider with most accurate pricing for Portland-Shannon flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Shannon flights.
Search Deals
From Portland to Galway
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 January 29, 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

Tue 2/24

5:40 pm-4:45 pm

2 stops18h 05m

Shannon

Tue 3/3

7:50 am-10:30 pm

2 stops19h 40m

$487

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 5/1

7:50 pm-10:15 am

1 stop9h 25m

Shannon

Tue 5/12

12:30 pm-6:23 pm

1 stop10h 53m

$489

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 2/25

12:29 pm-11:30 am

2 stops18h 01m

Shannon

Wed 3/4

2:00 pm-11:50 pm

2 stops14h 50m

$684

PortlandShannon

PWM - SNN

PWMSNN

Portland

Mon 2/23

12:29 pm-11:30 am

2 stops18h 01m

Shannon

Fri 2/27

2:45 pm-10:40 am

2 stops24h 55m

$696

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 2/25

6:00 am-11:30 am

3 stops24h 30m

Shannon

Wed 3/4

7:50 am-11:20 pm

3 stops20h 30m

$698

PortlandShannon

PWM - SNN

PWMSNN

Portland

Mon 2/23

6:00 am-11:30 am

3 stops24h 30m

Shannon

Fri 2/27

7:50 am-11:20 pm

3 stops20h 30m

$698

PortlandShannon

PWM - SNN

PWMSNN

Portland

Fri 5/1

6:00 am-5:25 am

2 stops18h 25m

Shannon

Tue 5/12

7:30 am-6:58 pm

2 stops16h 28m

$700

PortlandShannon

PWM - SNN

PWMSNN

Portland

Tue 2/24

6:00 am-11:30 am

3 stops24h 30m

Shannon

Tue 3/3

7:50 am-11:20 pm

3 stops20h 30m

$703

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sun 2/22

5:40 pm-4:45 pm

2 stops18h 05m

Shannon

Fri 2/27

2:45 pm-10:40 am

2 stops24h 55m

$706

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 4/15

7:12 pm-10:15 am

1 stop10h 03m

Shannon

Sat 4/25

12:30 pm-6:40 pm

1 stop11h 10m

$821

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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 $488). 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?

    American Airlines and United Airlines can get you from Portland, Maine to Galway in just under 9h 25m. Your travel time can differ by up to 8h 40m. Airlines will cover a distance of 2805 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $488). 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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