Cheap flights from Portugal to Glasgow Intl Airport from £48
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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Portugal to Glasgow Intl
Keep the following information in mind while searching for Portugal to Glasgow Intl flight deals. Data was last updated 18 September 2025.
Find flight deals from Portugal to Glasgow Intl
Cheapest flights from Portugal to Glasgow IntlExplore the most affordable flight options available from Portugal to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.
Explore the most affordable flight options available from Portugal to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Portugal to Glasgow Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LisbonGlasgow
LIS - GLA
LISGLA
Lisbon Humberto Delgado
Thu 6/11
07:00-21:50
1 stop14h 50m
Glasgow Intl
Wed 12/11
06:45-18:00
1 stop11h 15m
PortoGlasgow
OPO - GLA
OPOGLA
Porto
Fri 3/10
16:05-08:45
1 stop16h 40m
Glasgow Intl
Fri 24/10
06:30-09:15
Nonstop2h 45m
LisbonGlasgow
LIS - GLA
LISGLA
Lisbon Humberto Delgado
Thu 4/12
19:50-10:55
1 stop15h 05m
Glasgow Intl
Sat 13/12
09:40-15:50
1 stop6h 10m
LisbonGlasgow
LIS - GLA
LISGLA
Lisbon Humberto Delgado
Wed 22/10
21:30-10:05
1 stop12h 35m
Glasgow Intl
Sat 25/10
06:30-18:25
1 stop11h 55m
PortoGlasgow
OPO - GLA
OPOGLA
Porto
Thu 30/10
16:45-08:00
1 stop15h 15m
Glasgow Intl
Thu 6/11
08:55-13:40
1 stop4h 45m
PortoGlasgow
OPO - GLA
OPOGLA
Porto
Tue 11/11
13:00-20:05
1 stop7h 05m
Glasgow Intl
Wed 12/11
06:45-09:45
1 stop27h 00m
LisbonGlasgow
LIS - GLA
LISGLA
Lisbon Humberto Delgado
Thu 6/11
20:30-07:55
1 stop11h 25m
Glasgow Intl
Wed 12/11
08:15-08:30
2 stops24h 15m
LisbonGlasgow
LIS - GLA
LISGLA
Lisbon Humberto Delgado
Tue 4/11
19:10-07:40
1 stop12h 30m
Glasgow Intl
Thu 13/11
07:05-19:00
1 stop11h 55m
FaroGlasgow
FAO - GLA
FAOGLA
Faro
Thu 2/10
07:25-13:20
1 stop5h 55m
Glasgow Intl
Mon 6/10
21:50-08:45
1 stop10h 55m
LisbonGlasgow
LIS - GLA
LISGLA
Lisbon Humberto Delgado
Fri 31/10
13:25-22:40
1 stop9h 15m
Glasgow Intl
Fri 7/11
20:50-10:25
1 stop13h 35m
Best time to book a flight from Portugal to Glasgow Intl
Have a flexible travel schedule? Discover the best time to fly to Glasgow Intl from Portugal with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Portugal to Glasgow Intl Airport
What is the cheapest month to book a flight from Portugal to Glasgow Intl Airport?
Currently, April is the cheapest month in which you can book a flight from Portugal to Glasgow Intl Airport (average of £97). Flying from Portugal 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 PT to GLA?
Find hourly flight availability from Portugal 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 18 September 2025.
One of the essential ways to save on airfare from Portugal to Glasgow Intl Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 61% on airfare.
Related info for your journey
Find useful and relevant information for your journey from Portugal to Glasgow Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near Glasgow Intl Airport?
Book flights to Glasgow Intl Airport if you plan to visit one of these locationsBrowse thousands of different options on Cheapflights for your next trip
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Alternative routes for Portugal to Glasgow Intl
See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Portugal to Glasgow Intl?
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Why should you use Cheapflights to find cheap flight tickets from Portugal to Glasgow Intl?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Portugal to Glasgow Intl for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Portugal to Glasgow Intl with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Portugal to Glasgow Intl, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Portugal to Glasgow Intl become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!