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Cheap flights from Portland, Maine to Glasgow from $373

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Glasgow departing on 9/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Portland, Maine to Glasgow

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:20 pm - 3:35 pm
PWM
-
GLA
15h 15m
2 stops
American Airlines Logo
9:30 am - 10:05 pm
GLA
-
PWM
17h 35m
2 stops
$870American Airlines
Wed, Oct 7 - Wed, Oct 14
KLM Logo
2:35 pm - 4:15 pm
PWM
-
GLA
20h 40m
2 stops
KLM Logo
6:00 am - 11:59 pm
GLA
-
PWM
22h 59m
2 stops
$875KLM
Fri, Sep 25 - Fri, Oct 2
United Airlines Logo
10:43 am - 10:10 am
PWM
-
GLA
18h 27m
1 stop
United Airlines Logo
2:00 pm - 11:28 pm
GLA
-
PWM
14h 28m
1 stop
$916United Airlines
Wed, Oct 7 - Wed, Oct 14
United Airlines Logo
6:54 pm - 10:10 am
PWM
-
GLA
10h 16m
1 stop
United Airlines Logo
2:00 pm - 11:28 pm
GLA
-
PWM
14h 28m
1 stop
$928United Airlines
Fri, Sep 25 - Fri, Oct 2
United Airlines Logo
5:15 am - 10:10 am
PWM
-
GLA
23h 55m
2 stops
United Airlines Logo
2:00 pm - 8:00 pm
GLA
-
PWM
11h 00m
1 stop
$933United Airlines
Fri, Sep 25 - Fri, Oct 2
United Airlines Logo
6:54 pm - 10:10 am
PWM
-
GLA
10h 16m
1 stop
United Airlines Logo
2:00 pm - 11:28 pm
GLA
-
PWM
14h 28m
1 stop
$978United Airlines
Fri, Sep 25 - Sat, Oct 3
United Airlines Logo
2:32 pm - 10:10 am
PWM
-
GLA
14h 38m
2 stops
United Airlines Logo
2:00 pm - 8:00 pm
GLA
-
PWM
11h 00m
1 stop
$983United Airlines
Fri, Sep 25 - Sat, Oct 3
United Airlines Logo
3:16 pm - 10:10 am
PWM
-
GLA
13h 54m
1 stop
United Airlines Logo
2:00 pm - 11:30 pm
GLA
-
PWM
14h 30m
1 stop
$1,077United Airlines
Fri, Jul 24 - Fri, Jul 31
United Airlines Logo
2:20 pm - 10:10 am
PWM
-
GLA
14h 50m
2 stops
United Airlines Logo
2:00 pm - 11:30 pm
GLA
-
PWM
14h 30m
1 stop
$1,082United Airlines
Fri, Jul 24 - Fri, Jul 31

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United Airlines flights from Portland, Maine to Glasgow Intl Airport

Our best United Airlines deals on Portland, Maine to Glasgow Intl Airport flight tickets
United Airlines
Oct 7
PWM10:43 amPortland
18h 27m
1 stop
GLA10:10 amGlasgow Intl
Oct 14
GLA2:00 pmGlasgow Intl
14h 28m
1 stop
PWM11:28 pmPortland
$916
United Airlines
Sep 25
PWM6:54 pmPortland
10h 16m
1 stop
GLA10:10 amGlasgow Intl
Oct 2
GLA2:00 pmGlasgow Intl
14h 28m
1 stop
PWM11:28 pmPortland
$928
United Airlines
Sep 25
PWM5:15 amPortland
23h 55m
2 stops
GLA10:10 amGlasgow Intl
Oct 2
GLA2:00 pmGlasgow Intl
11h 00m
1 stop
PWM8:00 pmPortland
$933

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine to Glasgow Intl Airport 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, momondo users made 832,500 searches. Data last updated June 11, 2026.
Use the filters below to find and compare flights from Portland, Maine to Glasgow Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Wed 10/7

7:20 pm-3:35 pm

2 stops15h 15m

Glasgow Intl

Wed 10/14

9:30 am-10:05 pm

2 stops17h 35m

$870

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Fri 9/25

2:35 pm-4:15 pm

2 stops20h 40m

Glasgow Intl

Fri 10/2

6:00 am-11:59 pm

2 stops22h 59m

$875

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Wed 10/7

10:43 am-10:10 am

1 stop18h 27m

Glasgow Intl

Wed 10/14

2:00 pm-11:28 pm

1 stop14h 28m

$916
Quickest round-trip

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Fri 9/25

6:54 pm-10:10 am

1 stop10h 16m

Glasgow Intl

Fri 10/2

2:00 pm-11:28 pm

1 stop14h 28m

$928

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Fri 9/25

5:15 am-10:10 am

2 stops23h 55m

Glasgow Intl

Fri 10/2

2:00 pm-8:00 pm

1 stop11h 00m

$933

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Fri 9/25

6:54 pm-10:10 am

1 stop10h 16m

Glasgow Intl

Sat 10/3

2:00 pm-11:28 pm

1 stop14h 28m

$978

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Fri 9/25

2:32 pm-10:10 am

2 stops14h 38m

Glasgow Intl

Sat 10/3

2:00 pm-8:00 pm

1 stop11h 00m

$983

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Fri 7/24

3:16 pm-10:10 am

1 stop13h 54m

Glasgow Intl

Fri 7/31

2:00 pm-11:30 pm

1 stop14h 30m

$1,077

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Fri 7/24

2:20 pm-10:10 am

2 stops14h 50m

Glasgow Intl

Fri 7/31

2:00 pm-11:30 pm

1 stop14h 30m

$1,082
Cheapest one-way

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Fri 9/25

5:24 pm-4:25 pm

2 stops18h 01m

$373

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

See travel insights to Glasgow from

How to get the cheapest flight ticket from Portland, Maine to Glasgow Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Portland to Glasgow Intl?

American Airlines and United Airlines are the most popular carriers operating from Portland to Glasgow Intl

What airlines fly to Glasgow Intl Airport?

British Airways, Icelandair and Aer Lingus are the top three most popular airlines that fly to Glasgow Intl Airport from Portland, Maine according to our data. British Airways is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Glasgow Intl Airport. Keep in mind that there are 7 different airlines that fly to Glasgow Intl Airport on a routine basis, so you have a few additional options to choose from.

When to book flights from Portland, Maine to Glasgow Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Glasgow Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland, Maine to Glasgow Intl Airport (PWM to GLA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Glasgow Intl Airport

Fastest flight time

13h 54m

Direct flights

None
The fastest flight from Portland, Maine to Glasgow Intl Airport takes 13h 54m
There are no direct flights from Portland, Maine to Glasgow Intl Airport. There are no popular flight routes from Portland, Maine to Glasgow Intl Airport.
Search flight deals

Frequently asked questions about flying from Portland, Maine to Glasgow Intl Airport

  • How far is Portland to Glasgow Intl by plane?

    The straight-line distance from Portland to Glasgow Intl is 2931.7 mi. By plane, this route typically takes 13h 54m.

  • When did momondo last update prices for flights from Portland Airport to Glasgow Intl Airport?

    Prices for flights from Portland Airport to Glasgow Intl Airport refresh daily.

  • How old do you have to be to fly from Portland Airport to Glasgow Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Glasgow Intl Airport.

  • What documentation or ID do you need to fly to Glasgow Intl Airport?

    The required travel and health documents for your Glasgow Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Glasgow Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Glasgow?

Book flights to Glasgow if you plan to visit one of these locations
Dumbarton
Helensburgh
Inveraray
Paisley
Kilmarnock
Dunoon
East Kilbride
Ballachulish
Kinlochleven
Renfrew
Alexandria
Tarbert
Glencoe

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Glasgow?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Glasgow. momondo saves you time and could save you money on your trip.

Can I find flights from Portland to Glasgow with flexible booking policies on momondo?

Yes. All flights to Glasgow from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Portland to Glasgow?

Once all potential Portland to Glasgow flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Portland to Glasgow right now. Can momondo alert me if prices change?

Price alerts on flights to Glasgow from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Glasgow Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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