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Cheap flights from Portland to Glasgow Intl Airport from £243

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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — GLA
15 May — 22 May1
1 adult
1 adult, Economy, 0 bags

Cheap 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 April 2026.

Sat 15/815:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Tue 15/914:20
GLA
-
PDX
1 stop11h 35m
Icelandair
Deal found 11/4£601
Sat 15/815:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Mon 31/814:20
GLA
-
PDX
1 stop29h 25m
Icelandair
Deal found 13/4£601
Tue 11/815:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Wed 16/914:20
GLA
-
PDX
1 stop11h 35m
Icelandair
Deal found 11/4£616
Tue 11/815:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Wed 2/914:20
GLA
-
PDX
1 stop11h 35m
Icelandair
Deal found 13/4£617
Sat 15/815:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Fri 4/914:20
GLA
-
PDX
1 stop29h 25m
Icelandair
Deal found 13/4£618
Tue 11/815:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Mon 31/814:20
GLA
-
PDX
1 stop29h 25m
Icelandair
Deal found 13/4£618
Sat 15/815:30
PDX
-
GLA
1 stop13h 55m
Multiple Airlines
Mon 31/821:45
GLA
-
PDX
2 stops48h 05m
Multiple Airlines
Deal found 13/4£627
Tue 11/815:30
PDX
-
GLA
1 stop13h 55m
Multiple Airlines
Tue 1/908:20
GLA
-
PDX
2 stops37h 30m
Multiple Airlines
Deal found 13/4£628
Mon 28/915:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Wed 7/1014:20
GLA
-
PDX
1 stop11h 35m
Icelandair
Deal found 14/4£632
Mon 28/915:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Fri 9/1014:20
GLA
-
PDX
1 stop11h 35m
Icelandair
Deal found 14/4£644
Tue 11/815:30
PDX
-
GLA
1 stop13h 55m
Multiple Airlines
Sat 29/822:00
GLA
-
PDX
2 stops47h 50m
Multiple Airlines
Deal found 13/4£648
Tue 18/815:30
PDX
-
GLA
1 stop13h 55m
Multiple Airlines
Mon 14/921:45
GLA
-
PDX
2 stops48h 05m
Multiple Airlines
Deal found 11/4£651

Find 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 April 2026.

Round-trip from

£601

One-way from

£243

Popular in

June

Cheapest in

November

Average price

£559
Icelandair
  • Icelandair
  • 15/8-15/9
  • 2 total stops
  • 25h 30m total
  • Portland to Glasgow
Search Deals
12/8
  • 12/8
  • 3 total stops
  • 41h 45m total
  • Portland to Glasgow
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£80 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 April 2026.
Use the filters below to find and compare flights from Portland to Glasgow Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 17/8

19:30-18:40

1 stop15h 10m

Glasgow Intl

Thu 20/8

09:40-23:22

2 stops21h 42m

£663

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Tue 11/8

07:00-10:10

2 stops19h 10m

Glasgow Intl

Fri 11/9

14:00-22:03

1 stop16h 03m

£667

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Sun 4/10

15:50-16:10

2 stops16h 20m

Glasgow Intl

Sun 11/10

06:00-15:05

2 stops17h 05m

£711

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Sun 16/8

06:15-08:25

2 stops18h 10m

Glasgow Intl

Mon 7/9

06:00-11:10

1 stop13h 10m

£726
Fastest return journey

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Thu 13/8

10:56-10:10

1 stop15h 14m

Glasgow Intl

Sat 12/9

14:00-22:03

1 stop16h 03m

£738

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Sat 15/8

10:56-10:10

1 stop15h 14m

Glasgow Intl

Sun 6/9

14:00-22:03

1 stop16h 03m

£738

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Fri 21/8

10:56-10:10

1 stop15h 14m

Glasgow Intl

Mon 7/9

14:00-09:21

2 stops27h 21m

£742

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 11/5

15:30-16:10

2 stops16h 40m

Glasgow Intl

Mon 18/5

13:30-11:10

1 stop29h 40m

£745

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Sat 9/5

05:30-10:10

3 stops20h 40m

Glasgow Intl

Sat 16/5

14:00-09:38

2 stops27h 38m

£749

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Sat 8/8

10:33-10:10

1 stop15h 37m

Glasgow Intl

Sat 15/8

14:00-22:03

1 stop16h 03m

£758

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 21 resultsSorted by cheapest first
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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 10 April 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 37 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.

How much does it cost for a return flight from Portland to Glasgow Intl Airport?

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?

    Finnair, United Airlines, and KLM can get you from Portland to Glasgow Intl Airport in just under 15h 10m. Your travel time can differ by up to 4h. 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.

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
Alexandria
Tarbert
Balloch

Browse thousands of different options on Cheapflights for your next trip

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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.

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