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Cheap flights from Portland, Maine to Glasgow from $394

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 9/4. 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
0 bags

Find the cheapest flights from Portland, Maine to Glasgow

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
6:25 am - 9:40 am
PWM
-
GLA
22h 15m
2 stops
KLM Logo
6:00 am - 12:52 am
GLA
-
PWM
23h 52m
2 stops
$988KLM
Fri, May 29 - Sun, Jun 7
Multiple Airlines Logo
3:03 pm - 1:25 pm
PWM
-
GLA
17h 22m
2 stops
Multiple Airlines Logo
9:35 am - 11:24 pm
GLA
-
PWM
18h 49m
2 stops
$1,001Multiple Airlines
Mon, Sep 14 - Tue, Sep 22
United Airlines Logo
7:35 pm - 10:10 am
PWM
-
GLA
33h 35m
2 stops
United Airlines Logo
2:00 pm - 11:31 pm
GLA
-
PWM
14h 31m
1 stop
$1,057United Airlines
Mon, Sep 14 - Tue, Sep 22
Delta Logo
6:30 am - 8:25 am
PWM
-
GLA
20h 55m
2 stops
Delta Logo
6:00 am - 12:52 am
GLA
-
PWM
23h 52m
2 stops
$1,100Delta
Sun, Jun 7 - Sun, Jun 14
United Airlines Logo
6:25 pm - 10:10 am
PWM
-
GLA
58h 45m
2 stops
United Airlines Logo
2:00 pm - 11:30 pm
GLA
-
PWM
14h 30m
1 stop
$1,179United Airlines
Fri, May 29 - Sun, Jun 7
United Airlines Logo
7:16 pm - 10:10 am
PWM
-
GLA
33h 54m
2 stops
United Airlines Logo
2:00 pm - 11:30 pm
GLA
-
PWM
14h 30m
1 stop
$1,249United Airlines
Fri, May 29 - Sun, Jun 7
United Airlines Logo
6:00 am - 10:10 am
PWM
-
GLA
23h 10m
1 stop
United Airlines Logo
2:00 pm - 11:51 pm
GLA
-
PWM
14h 51m
2 stops
$1,264United Airlines
Fri, May 22 - Fri, May 29
United Airlines Logo
6:00 am - 10:10 am
PWM
-
GLA
23h 10m
1 stop
United Airlines Logo
2:00 pm - 11:30 pm
GLA
-
PWM
14h 30m
1 stop
$1,283United Airlines
Fri, May 22 - Fri, May 29
American Airlines Logo
6:54 pm - 8:15 pm
PWM
-
GLA
20h 21m
2 stops
American Airlines Logo
8:35 am - 9:46 pm
GLA
-
PWM
18h 11m
2 stops
$1,311American Airlines
Fri, May 22 - Fri, May 29
United Airlines Logo
6:00 am - 10:10 am
PWM
-
GLA
23h 10m
1 stop
United Airlines Logo
2:00 pm - 11:30 pm
GLA
-
PWM
14h 30m
1 stop
$1,333United Airlines
Fri, May 22 - Sat, May 30

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KLM flights from Portland, Maine to Glasgow Intl Airport

Our best KLM deals on Portland, Maine to Glasgow Intl Airport flight tickets
KLM
May 29
PWM6:25 amPortland
22h 15m
2 stops
GLA9:40 amGlasgow Intl
Jun 7
GLA6:00 amGlasgow Intl
23h 52m
2 stops
PWM12:52 amPortland
$988
KLM
May 22
PWM2:38 pmPortland
20h 37m
2 stops
GLA4:15 pmGlasgow Intl
May 30
GLA10:25 amGlasgow Intl
19h 18m
2 stops
PWM12:43 amPortland
$1,395

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
Sep 14
PWM7:35 pmPortland
33h 35m
2 stops
GLA10:10 amGlasgow Intl
Sep 22
GLA2:00 pmGlasgow Intl
14h 31m
1 stop
PWM11:31 pmPortland
$1,057
United Airlines
May 29
PWM6:25 pmPortland
58h 45m
2 stops
GLA10:10 amGlasgow Intl
Jun 7
GLA2:00 pmGlasgow Intl
14h 30m
1 stop
PWM11:30 pmPortland
$1,179
United Airlines
May 29
PWM7:16 pmPortland
33h 54m
2 stops
GLA10:10 amGlasgow Intl
Jun 7
GLA2:00 pmGlasgow Intl
14h 30m
1 stop
PWM11:30 pmPortland
$1,249

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 April 28, 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

Fri 5/29

6:25 am-9:40 am

2 stops22h 15m

Glasgow Intl

Sun 6/7

6:00 am-12:52 am

2 stops23h 52m

$988
Quickest round-trip

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Mon 9/14

3:03 pm-1:25 pm

2 stops17h 22m

Glasgow Intl

Tue 9/22

9:35 am-11:24 pm

2 stops18h 49m

$1,001

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Mon 9/14

7:35 pm-10:10 am

2 stops33h 35m

Glasgow Intl

Tue 9/22

2:00 pm-11:31 pm

1 stop14h 31m

$1,057

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Sun 6/7

6:30 am-8:25 am

2 stops20h 55m

Glasgow Intl

Sun 6/14

6:00 am-12:52 am

2 stops23h 52m

$1,100

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Fri 5/29

6:25 pm-10:10 am

2 stops58h 45m

Glasgow Intl

Sun 6/7

2:00 pm-11:30 pm

1 stop14h 30m

$1,179

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Fri 5/29

7:16 pm-10:10 am

2 stops33h 54m

Glasgow Intl

Sun 6/7

2:00 pm-11:30 pm

1 stop14h 30m

$1,249

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Fri 5/22

6:00 am-10:10 am

1 stop23h 10m

Glasgow Intl

Fri 5/29

2:00 pm-11:51 pm

2 stops14h 51m

$1,264

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Fri 5/22

6:00 am-10:10 am

1 stop23h 10m

Glasgow Intl

Fri 5/29

2:00 pm-11:30 pm

1 stop14h 30m

$1,283

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Fri 5/22

6:54 pm-8:15 pm

2 stops20h 21m

Glasgow Intl

Fri 5/29

8:35 am-9:46 pm

2 stops18h 11m

$1,311

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Fri 5/22

6:00 am-10:10 am

1 stop23h 10m

Glasgow Intl

Sat 5/30

2:00 pm-11:30 pm

1 stop14h 30m

$1,333

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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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 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 38% 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

17h 22m

Direct flights

None
The fastest flight from Portland, Maine to Glasgow Intl Airport takes 17h 22m
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 17h 22m.

  • 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
Paisley
Dumbarton
Helensburgh
Inveraray
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

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