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Cheap flights from Glasgow Intl Airport to Portland from £280

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — PDX
30 Jun — 7 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Glasgow Intl to Portland

Enter your travel dates to find the best prices.

Cheapest flights from Glasgow Intl to Portland
Explore the most affordable flight options available from Glasgow Intl to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 May 2026.

Wed 16/914:20
GLA
-
PDX
1 stop11h 35m
Icelandair
Wed 30/915:30
PDX
-
GLA
1 stop13h 55m
Icelandair
Deal found 30/5£727
Wed 16/909:30
GLA
-
PDX
2 stops22h 37m
Finnair
Wed 30/919:30
PDX
-
GLA
1 stop15h 15m
Finnair
Deal found 29/5£776
Wed 16/906:00
GLA
-
PDX
2 stops19h 26m
Delta
Wed 30/906:00
PDX
-
GLA
2 stops22h 55m
Delta
Deal found 29/5£780
Wed 8/711:00
GLA
-
PDX
3 stops30h 31m
Multiple Airlines
Sun 19/710:10
PDX
-
GLA
3 stops28h 30m
Multiple Airlines
Deal found 26/5£793

Find flight deals from Glasgow Intl to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow Intl (GLA) to Portland (PDX). 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 31 May 2026.

Round-trip from

£727

One-way from

£280
Icelandair
  • Icelandair
  • 16/9-30/9
  • 2 total stops
  • 25h 30m total
  • Glasgow to Portland
Search Deals
2/9
  • 2/9
  • 3 total stops
  • 47h 15m total
  • Glasgow to Portland
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Glasgow Intl to Portland 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 31 May 2026.
Use the filters below to find and compare flights from Glasgow Intl Airport to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Wed 16/9

14:20-17:55

1 stop11h 35m

Portland

Wed 30/9

15:30-13:25

1 stop13h 55m

£727

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Wed 16/9

09:30-00:07

2 stops22h 37m

Portland

Wed 30/9

19:30-18:45

1 stop15h 15m

£776

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Wed 16/9

06:00-17:26

2 stops19h 26m

Portland

Wed 30/9

13:52-12:55

2 stops15h 03m

£782

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Wed 23/9

14:00-19:18

2 stops37h 18m

Portland

Sun 27/9

22:35-10:10

1 stop27h 35m

£796
Cheapest one-way

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Thu 3/9

21:40-13:50

3 stops48h 10m

£280

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Sun 30/8

21:55-13:50

3 stops47h 55m

£291

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Sat 29/8

21:35-13:50

3 stops48h 15m

£331

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Mon 31/8

21:45-13:50

3 stops48h 05m

£369

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Tue 1/9

21:20-13:50

3 stops48h 30m

£382

GlasgowPortland

GLA - PDX

GLAPDX

Glasgow Intl

Fri 28/8

14:20-13:50

2 stops31h 30m

£417

Flights are sorted by cheapest return flights first.

Deals found on 28/5

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

Best time to book a flight from Glasgow Intl to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Glasgow Intl 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 Glasgow Intl Airport to Portland

What’s the top stopover airport for flights from Glasgow Intl Airport to Portland?

Share of one-stop return flights from Glasgow Intl Airport to Portland chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Reykjavik (KEF) – chosen by Cheapflights users on 75% of one-stop itineraries from Glasgow Intl Airport to Portland on Cheapflights.

What’s the cheapest stopover airport for flights from Glasgow Intl Airport to Portland?

Average return fare for one-stop flights from Glasgow Intl Airport to Portland, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Reykjavik (KEF) is the most affordable one-stop option, with an average return flight price of £652.

What’s the fastest stopover option from Glasgow Intl Airport to Portland?

Shortest average travel time for one-stop one-way flights from Glasgow Intl Airport to Portland, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) have the shortest average one-way travel time for one-stop routes: 11h 46m.

Which airport typically offers the quickest stopover for flights from Glasgow Intl Airport to Portland?

Average stopover duration for one-stop one-way flights from Glasgow Intl Airport to Portland, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average stopover time of 1h 46m.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated 31 May 2026.
See what other customers who have flown with Icelandair from Glasgow Intl Airport to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.0
Good
661 reviews
Check prices

Entertainment

6.9

Crew

8.0

Comfort

6.9

Overall

7.0

Food

6.1

Boarding

7.2

Reviews

1 / 20
4.0
Okay

Daniel,May 2026

LHR - KEF

We had to change flights in Reykjavik and the outgoing flight was send to gate D23, where there were NO SEATS in the lounge. And in general, there were not enough seats for transferring passengers in general. After the three hour flight from London and then expecting a 7 hour flight to Seattle, having to stand & mill around for over an hour was rather unpleasant. We had booked Business Class and were assigned seats in the bulkhead seats, row 1. This made a MOST unpleasant 7 hour flight from Reykjavik to Seattle. The flight attendants had stored some of their carry-ons in the overhead bin just above us so it left us little room to place our carry-ons that was convenient. The seats in Business Class are too deep for shorter people and without ANY form of leg rest/support, we struggled to be comfortable for the entire flight.
Icelandair
7.0
Good
661 reviews
Icelandair
7.0
Good
661 reviews
Check prices

Entertainment

6.9

Crew

8.0

Comfort

6.9

Overall

7.0

Food

6.1

Boarding

7.2

Reviews

1 / 20
4.0
Okay

Daniel,May 2026

LHR - KEF

We had to change flights in Reykjavik and the outgoing flight was send to gate D23, where there were NO SEATS in the lounge. And in general, there were not enough seats for transferring passengers in general. After the three hour flight from London and then expecting a 7 hour flight to Seattle, having to stand & mill around for over an hour was rather unpleasant. We had booked Business Class and were assigned seats in the bulkhead seats, row 1. This made a MOST unpleasant 7 hour flight from Reykjavik to Seattle. The flight attendants had stored some of their carry-ons in the overhead bin just above us so it left us little room to place our carry-ons that was convenient. The seats in Business Class are too deep for shorter people and without ANY form of leg rest/support, we struggled to be comfortable for the entire flight.

Related info for your journey

Find useful and relevant information for your journey from Glasgow Intl to Portland. 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 into for flights to Portland from Glasgow Intl?

    If you book a flight to Portland from Glasgow Intl, you will be flying to Portland, which is the city’s only airport. Portland (PDX) is located 6.0 mi from the center of Portland. There are 0 flights from Glasgow Intl to Portland per day from 1 airline.

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

    For as low as £727, Icelandair can have you in Portland from Glasgow Intl Airport in 11h 35m. Airlines will cover a distance of 4560 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from Glasgow Intl Airport to Portland round-trip?

    Currently priced at £545, Icelandair will fly you from Glasgow Intl Airport to Portland and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Glasgow Intl to Portland 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

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Top airline flying from Glasgow Intl to Portland

Discover the top airline that operate flights from Glasgow Intl to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 31 May 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£545Average£707FlexibilityNo cancel feeOn-time76%
Search Icelandair 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 Glasgow Intl to Portland?

When you search for this flight from Glasgow Intl to Portland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights helps you find that perfect flight to Portland from Glasgow Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Certainly. Search results for flights to Portland from Glasgow Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

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

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