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$489+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SNN
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
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 3, 2026.

This United Airlines deal was found by Cheapflights users on 2/1. 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 5/17:50 pm
PWM
-
SNN
1 stop9h 25m
United Airlines
Fri 5/812:30 pm
SNN
-
PWM
1 stop10h 53m
United Airlines
Deal found 2/1$489
This United Airlines deal was found by Cheapflights users on 2/1. 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 8/234:48 pm
PWM
-
SNN
1 stop33h 42m
United Airlines
Mon 8/3112:30 pm
SNN
-
PWM
1 stop10h 57m
United Airlines
Deal found 2/1$494
This KLM deal was found by Cheapflights users on 2/1. 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 2/1$520
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3010:00 am
PWM
-
SNN
2 stops16h 30m
United Airlines
Mon 8/1012:30 pm
SNN
-
PWM
1 stop10h 57m
United Airlines
Deal found 2/2$525
This United Airlines deal was found by Cheapflights users on 2/1. 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 8/306:00 am
PWM
-
SNN
2 stops20h 30m
United Airlines
Sat 9/129:30 am
SNN
-
PWM
2 stops33h 12m
United Airlines
Deal found 2/1$591
This Ovago 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:45 pm
PWM
-
SNN
1 stop9h 30m
Lufthansa
Sat 5/912:30 pm
SNN
-
PWM
1 stop29h 57m
Lufthansa
Deal found 2/2$595
This United Airlines deal was found by Cheapflights users on 2/1. 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 6/16:00 am
PWM
-
SNN
1 stop20h 30m
United Airlines
Sat 6/1312:30 pm
SNN
-
PWM
1 stop10h 57m
United Airlines
Deal found 2/1$664
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:07 am
PWM
-
SNN
2 stops17h 53m
American Airlines
Sat 5/97:30 am
SNN
-
PWM
2 stops20h 52m
American Airlines
Deal found 2/2$701
This United Airlines deal was found by Cheapflights users on 2/1. 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 9/136:00 am
PWM
-
SNN
2 stops20h 30m
United Airlines
Sat 9/2612:30 pm
SNN
-
PWM
1 stop10h 57m
United Airlines
Deal found 2/1$704

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 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$489
(United Airlines)
Provider with most accurate pricing for Portland-Shannon flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Shannon flights.
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From Portland to Galway
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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 3, 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

Fri 5/1

7:50 pm-10:15 am

1 stop9h 25m

Shannon

Fri 5/8

12:30 pm-6:23 pm

1 stop10h 53m

$489

PortlandShannon

PWM - SNN

PWMSNN

Portland

Sat 5/2

11:34 am-10:15 am

2 stops17h 41m

Shannon

Sat 5/9

12:30 pm-6:23 pm

1 stop10h 53m

$494

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 7/30

2:35 pm-11:10 am

1 stop15h 35m

Shannon

Mon 8/10

1:05 pm-11:59 pm

1 stop15h 54m

$520

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 7/30

2:35 pm-11:10 am

1 stop15h 35m

Shannon

Mon 8/10

1:05 pm-11:59 pm

1 stop15h 54m

$520

PortlandShannon

PWM - SNN

PWMSNN

Portland

Thu 7/30

6:00 am-7:30 am

2 stops20h 30m

Shannon

Mon 8/10

12:30 pm-6:27 pm

1 stop10h 57m

$525

PortlandShannon

PWM - SNN

PWMSNN

Portland

Mon 6/1

6:00 am-7:30 am

1 stop20h 30m

Shannon

Sat 6/13

12:30 pm-6:27 pm

1 stop10h 57m

$664

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

$725

PortlandShannon

PWM - SNN

PWMSNN

Portland

Wed 4/15

7:12 pm-10:15 am

1 stop10h 03m

Shannon

Sat 4/25

12:30 pm-5:32 pm

2 stops34h 02m

$741

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

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 $494). 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, KLM, and Delta can get you from Portland, Maine to Galway in just under 9h 25m. Your travel time can differ by up to 6h 10m. 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 $494). 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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