Find flights
When to book
FAQs

Cheap flights from Portland to Glasgow Intl Airport from £157

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — GLA
14 Feb — 21 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portland to Glasgow Intl

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Glasgow Intl (GLA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 January 2026.

Round-trip from

£370

One-way from

£157

Popular in

June

Cheapest in

November

Average price

£781
Icelandair
  • Icelandair
  • 16/3-20/3
  • 2 total stops
  • 23h 35m total
  • Portland to Glasgow
Search Deals
Icelandair
  • Icelandair
  • 10/3
  • 1 total stop
  • 11h 10m total
  • Portland to Glasgow
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£149 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find flight deals from Portland to Glasgow Intl

Enter your travel dates to find the best prices.

Cheapest flights from Portland to Glasgow Intl
Explore the most affordable flight options available from Portland to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 January 2026.

Thu 2/415:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Fri 10/414:20
GLA
-
PDX
1 stop11h 40m
Icelandair
Deal found 14/1£378
Tue 14/415:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Wed 22/414:20
GLA
-
PDX
1 stop11h 40m
Icelandair
Deal found 14/1£379
Sat 11/415:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Mon 20/414:20
GLA
-
PDX
1 stop11h 40m
Icelandair
Deal found 14/1£382
Sat 16/515:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Wed 27/514:20
GLA
-
PDX
1 stop11h 35m
Icelandair
Deal found 13/1£397
Sat 28/315:45
PDX
-
GLA
1 stop13h 40m
Icelandair
Wed 1/414:20
GLA
-
PDX
1 stop11h 40m
Icelandair
Deal found 13/1£398
Wed 11/318:45
PDX
-
GLA
1 stop16h 30m
British Airways
Tue 17/319:10
GLA
-
PDX
1 stop28h 45m
British Airways
Deal found 13/1£405
Mon 2/317:45
PDX
-
GLA
1 stop12h 45m
British Airways
Wed 11/310:55
GLA
-
PDX
1 stop13h 00m
British Airways
Deal found 13/1£415
Mon 6/411:46
PDX
-
GLA
2 stops17h 39m
British Airways
Tue 14/409:35
GLA
-
PDX
2 stops21h 14m
British Airways
Deal found 14/1£417

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portland to Glasgow Intl 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 858,174 searches. Data last updated 15 January 2026.
Use the filters below to find and compare flights from Portland to Glasgow Intl Airport that are best for you.

Fly from

Portland

Fly to

Glasgow Intl

Route

Depart

Return

Price

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Sat 11/4

15:30-13:25

1 stop13h 55m

Glasgow Intl

Mon 20/4

14:20-18:00

1 stop11h 40m

£382

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 6/4

11:46-16:10

2 stops20h 24m

Glasgow Intl

Tue 14/4

10:55-17:40

1 stop14h 45m

£415

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Tue 14/4

08:00-09:40

2 stops17h 40m

Glasgow Intl

Wed 22/4

06:25-17:40

1 stop19h 15m

£425

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 13/4

06:22-10:05

2 stops19h 43m

Glasgow Intl

Tue 21/4

10:55-17:40

1 stop14h 45m

£432

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Sun 12/4

06:22-09:50

2 stops19h 28m

Glasgow Intl

Tue 21/4

09:35-17:40

1 stop16h 05m

£432

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Wed 4/3

17:45-15:50

1 stop14h 05m

Glasgow Intl

Sun 8/3

12:50-16:55

1 stop35h 05m

£434

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 6/4

15:30-13:25

1 stop13h 55m

£157

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Tue 10/3

15:45-09:55

1 stop11h 10m

£157

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Tue 12/5

17:30-16:45

2 stops15h 15m

£244

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Fri 20/2

19:38-08:00

3 stops52h 22m

£248

Flights are sorted by cheapest return flights first.

Deals found on 13/1

Showing 1-10 of 13 results
1
2

Best time to book a flight from Portland to Glasgow Intl

Have a flexible travel schedule? Discover the best time to fly to Glasgow Intl from Portland with our price prediction graph.
Estimated return 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 Glasgow Intl Airport

How far ahead should I book a flight from Portland to Glasgow Intl Airport?

Use this chart to determine the optimal time to book a return flight from Portland to Glasgow Intl. Price data was last updated on 9 January 2026.

To ensure you get the cheapest price possible for a flight from Portland to Glasgow Intl Airport, you should look to book at least 88 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Portland to Glasgow Intl Airport?

Currently, November is the cheapest month in which you can book a flight from Portland to Glasgow Intl Airport (average of £396). Flying from Portland to Glasgow Intl Airport in January is currently the most expensive (average of £781). 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 Glasgow Intl. 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 Glasgow Intl?

    Portland (PDX) is the airport you will fly out of if you book a flight from Portland to Glasgow Intl. You should not have trouble finding flights to Glasgow Intl from Portland; the airport handles an average of 0 outbound flights to Glasgow Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Portland airport to Glasgow Intl. It is only a 6.0 mi journey to Portland (PDX) from Portland’s city center.

  • How long is the flight from Portland to Glasgow Intl Airport?

    Icelandair and British Airways can get you from Portland to Glasgow Intl Airport in just under 13h 55m. Your travel time can differ by up to 6h 29m. There are 4560 mi between Portland and Glasgow Intl Airport. Both multi-stop and direct flights can be found to your destination and back.

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

    Yes. In addition to deals on Portland to Glasgow Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portland to Glasgow Intl?

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

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

    Yes. Cheapflights offers flight deals from Portland to Glasgow Intl 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 to Glasgow Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Portland to Glasgow Intl Airport (average of £396). Flying from Portland to Glasgow Intl Airport in January is currently the most expensive (average of £781). 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

Travelling to a place near Glasgow Intl Airport?

Book flights to Glasgow Intl Airport if you plan to visit one of these locations
Paisley
Dunoon
Kilmarnock
Dumbarton
Arrochar
Clydebank
East Kilbride
Largs
Inveraray
Renfrew
Rothesay
Ballachulish
Alexandria
Tarbert
Balloch

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Glasgow Intl

See prices for flight routes from nearby airports that may be better suited for you.
Eugene to Glasgow Intl flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Portland to Glasgow Intl?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Portland to Glasgow Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Portland to Glasgow Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Portland to Glasgow Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Portland to Glasgow Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Portland to Glasgow Intl with no change fees.

Can Cheapflights notify me if prices for flights from Portland to Glasgow Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Glasgow Intl from Portland today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.