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Cheap flights from Portland to Glasgow Intl Airport from £263

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — GLA
6 Sep — 13 Sep1
1 adult

Cheapflights Tip: The best prices from Portland to Glasgow Intl are usually found in November or April, booked 45 days in advance, depart on a Monday or Tuesday and return on a Tuesday

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 1 September 2025.

Round-trip from

£364

One-way from

£263

Popular in

July

Cheapest in

November

Average price

£543
Icelandair
  • Icelandair
  • 18/11-3/12
  • 2 total stops
  • 23h 35m total
  • Portland to Glasgow
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Icelandair
  • Icelandair
  • 1/10
  • 1 total stop
  • 14h 05m total
  • Portland to Glasgow
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£149 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Portland to Glasgow Intl

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 1 September 2025.

Tue 18/1114:45PDX - GLA
1 stop11h 10mIcelandair
Wed 3/1212:35GLA - PDX
1 stop12h 25mIcelandair
Deal found 1/9£364
Mon 17/1114:45PDX - GLA
1 stop11h 10mIcelandair
Wed 3/1212:35GLA - PDX
1 stop12h 25mIcelandair
Deal found 31/8£383
Mon 20/1015:20PDX - GLA
1 stop14h 05mIcelandair
Wed 19/1112:35GLA - PDX
1 stop12h 25mIcelandair
Deal found 30/8£401
Wed 22/1015:20PDX - GLA
1 stop14h 05mIcelandair
Wed 29/1012:35GLA - PDX
1 stop12h 25mIcelandair
Deal found 31/8£411
Wed 15/1015:20PDX - GLA
1 stop14h 05mIcelandair
Wed 22/1014:20GLA - PDX
1 stop11h 35mIcelandair
Deal found 31/8£423
Wed 1/1015:20PDX - GLA
1 stop14h 05mIcelandair
Wed 15/1014:20GLA - PDX
1 stop11h 35mIcelandair
Deal found 30/8£434
Tue 28/1015:45PDX - GLA
1 stop11h 10mIcelandair
Fri 7/1112:35GLA - PDX
1 stop12h 25mIcelandair
Deal found 1/9£446
Mon 17/1117:45PDX - GLA
1 stop12h 45mBritish Airways
Tue 2/1219:10GLA - PDX
1 stop28h 45mBritish Airways
Deal found 31/8£476
Tue 18/1111:43PDX - GLA
2 stops18h 52mBritish Airways
Wed 3/1209:45GLA - PDX
1 stop14h 10mBritish Airways
Deal found 1/9£479
Mon 17/1114:45PDX - GLA
1 stop11h 10mIcelandair
Fri 28/1112:35GLA - PDX
1 stop12h 25mIcelandair
Deal found 31/8£482

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 1 September 2025.
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

Tue 18/11

14:45-09:55

1 stop11h 10m

Glasgow Intl

Wed 3/12

12:35-17:00

1 stop12h 25m

£364

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 17/11

14:45-09:55

1 stop11h 10m

Glasgow Intl

Wed 3/12

12:35-17:00

1 stop12h 25m

£383

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Mon 20/10

15:20-13:25

1 stop14h 05m

Glasgow Intl

Wed 19/11

12:35-17:00

1 stop12h 25m

£401

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Wed 22/10

15:20-13:25

1 stop14h 05m

Glasgow Intl

Wed 29/10

12:35-18:00

1 stop12h 25m

£411

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Wed 15/10

15:20-13:25

1 stop14h 05m

Glasgow Intl

Wed 22/10

14:20-17:55

1 stop11h 35m

£423

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Wed 1/10

15:20-13:25

1 stop14h 05m

Glasgow Intl

Wed 15/10

14:20-17:55

1 stop11h 35m

£434

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Tue 28/10

15:45-09:55

1 stop11h 10m

Glasgow Intl

Fri 7/11

12:35-17:00

1 stop12h 25m

£446

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Wed 1/10

15:20-13:25

1 stop14h 05m

£263

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Tue 18/11

14:45-09:55

1 stop11h 10m

£263

PortlandGlasgow

PDX - GLA

PDXGLA

Portland

Wed 1/10

12:07-20:50

3 stops48h 43m

£263

Flights are sorted by cheapest return flights first.

Deals found on 30/8

Showing 1-10 of 15 results
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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 29 August 2025.

To ensure you get the cheapest price possible for a flight from Portland to Glasgow Intl Airport, you should look to book at least 44 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, April is the cheapest month in which you can book a flight from Portland to Glasgow Intl Airport (average of £97). Flying from Portland to Glasgow Intl Airport in July is currently the most expensive (average of £119). 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.

What is the cheapest time of day to fly from PDX to GLA?

Find hourly flight availability from Portland to Glasgow Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 September 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 5% on flights from Portland to Glasgow Intl Airport by exploring options for tickets in the morning.

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 can get you from Portland to Glasgow Intl Airport in just under 11h 10m. Your travel time can differ by up to . There are 4560 mi between Portland and Glasgow Intl Airport.

  • 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, April is the cheapest month in which you can book a flight from Portland to Glasgow Intl Airport (average of £97). Flying from Portland to Glasgow Intl Airport in July is currently the most expensive (average of £119). 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
Largs
Renfrew
Kilmarnock
Dumbarton
Clydebank
East Kilbride
Arrochar
Inveraray
Rothesay
Ballachulish
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

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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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