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Cheap flights from Glasgow Intl Airport to Portugal from £38

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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — LIS
16 Jul — 23 Jul1
1 adult

Cheap flight deals from Glasgow Intl to Portugal

Keep the following information in mind while searching for Glasgow Intl to Portugal flight deals. Data was last updated 11 July 2025.

Round-trip from

£84

One-way from

£38

Popular in

July

Cheapest in

January

Average price

£258

Good round-trip deal

£149 or less

Good one-way deal

£66 or less
Jet2
  • Jet2
  • 7/8-23/8
  • Nonstop
  • 6h 40m total
  • Glasgow to Portugal
easyJet
  • easyJet
  • 25/8
  • Nonstop
  • 3h 15m total
  • Glasgow to Portugal
Highest demand for flights based on searches. 19% potential increase in price (£31 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£6 potential savings vs. average return price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Glasgow Intl to Portugal.
Price to beat on a one-way flight from Glasgow Intl to Portugal.

Find flight deals from Glasgow Intl to Portugal

Cheapest flights from Glasgow Intl to Portugal
Explore the most affordable flight options available from Glasgow Intl to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.

Thu 7/816:30GLA - FAO
Nonstop3h 15mMultiple Airlines
Sat 23/811:05FAO - GLA
Nonstop3h 25mMultiple Airlines
Deal found 9/7£84
Mon 11/816:50GLA - FAO
Nonstop3h 15measyJet
Thu 11/907:00FAO - GLA
1 stop12h 50measyJet
Deal found 9/7£104
Sat 18/1015:35GLA - FAO
1 stop7h 55mRyanair
Sat 25/1022:00FAO - GLA
1 stop10h 00mRyanair
Deal found 10/7£144
Sun 14/918:50GLA - LIS
1 stop13h 10measyJet
Wed 17/921:30LIS - GLA
1 stop12h 35measyJet
Deal found 9/7£144
Fri 25/706:30GLA - OPO
Nonstop2h 45measyJet
Mon 28/706:05OPO - GLA
1 stop26h 05measyJet
Deal found 9/7£160
Mon 4/806:30GLA - LIS
1 stop12h 35mMultiple Airlines
Fri 5/921:45LIS - GLA
1 stop9h 25mMultiple Airlines
Deal found 9/7£163
Tue 26/815:55GLA - LIS
1 stop5h 15mRyanair
Fri 29/822:30LIS - GLA
1 stop10h 15mRyanair
Deal found 10/7£166
Mon 4/806:50GLA - OPO
Nonstop2h 45mMultiple Airlines
Thu 7/806:45OPO - GLA
2 stops16h 10mMultiple Airlines
Deal found 10/7£168
Mon 20/1006:50GLA - FNC
1 stop13h 45measyJet
Mon 27/1018:30FNC - GLA
1 stop16h 10measyJet
Deal found 9/7£175
Mon 25/821:50GLA - OPO
2 stops16h 50mRyanair
Fri 29/816:05OPO - GLA
1 stop16h 40mRyanair
Deal found 9/7£187
Mon 20/1008:30GLA - FNC
1 stop14h 05mMultiple Airlines
Mon 27/1006:00FNC - GLA
2 stops16h 20mMultiple Airlines
Deal found 9/7£194
Mon 11/815:30GLA - FNC
Nonstop4h 10mJet2
Mon 18/820:25FNC - GLA
Nonstop4h 00mJet2
Deal found 10/7£211

Cheapflights Fare Finder

Customise your flight search to find flights from Glasgow Intl to Portugal 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 11 July 2025.
Use the filters below to find and compare flights from Glasgow Intl Airport to Portugal that are best for you.

Fly from

Glasgow Intl

Fly to

Portugal

Route

Depart

Return

Price

GlasgowFaro

GLA - FAO

GLAFAO

Glasgow Intl

Thu 7/8

16:30-19:45

Nonstop3h 15m

Faro

Sat 23/8

11:05-14:30

Nonstop3h 25m

£84

GlasgowFaro

GLA - FAO

GLAFAO

Glasgow Intl

Mon 11/8

16:50-20:05

Nonstop3h 15m

Faro

Thu 11/9

07:00-19:50

1 stop12h 50m

£104

GlasgowFaro

GLA - FAO

GLAFAO

Glasgow Intl

Sat 18/10

15:35-23:30

1 stop7h 55m

Faro

Sat 25/10

22:00-08:00

1 stop10h 00m

£144

GlasgowLisbon

GLA - LIS

GLALIS

Glasgow Intl

Sun 14/9

18:50-08:00

1 stop13h 10m

Lisbon Humberto Delgado

Wed 17/9

21:30-10:05

1 stop12h 35m

£144

GlasgowPorto

GLA - OPO

GLAOPO

Glasgow Intl

Fri 25/7

06:30-09:15

Nonstop2h 45m

Porto

Mon 28/7

06:05-08:10

1 stop26h 05m

£160

GlasgowLisbon

GLA - LIS

GLALIS

Glasgow Intl

Mon 4/8

06:30-19:05

1 stop12h 35m

Lisbon Humberto Delgado

Fri 5/9

21:45-07:10

1 stop9h 25m

£163

GlasgowLisbon

GLA - LIS

GLALIS

Glasgow Intl

Tue 26/8

15:55-21:10

1 stop5h 15m

Lisbon Humberto Delgado

Fri 29/8

22:30-08:45

1 stop10h 15m

£166

GlasgowPorto

GLA - OPO

GLAOPO

Glasgow Intl

Mon 4/8

06:50-09:35

Nonstop2h 45m

Porto

Thu 7/8

06:45-22:55

2 stops16h 10m

£168

GlasgowFunchal

GLA - FNC

GLAFNC

Glasgow Intl

Mon 20/10

06:50-20:35

1 stop13h 45m

Funchal Madeira

Mon 27/10

18:30-10:40

1 stop16h 10m

£175

GlasgowPorto

GLA - OPO

GLAOPO

Glasgow Intl

Mon 25/8

21:50-14:40

2 stops16h 50m

Porto

Fri 29/8

16:05-08:45

1 stop16h 40m

£187

Flights are sorted by cheapest return flights first.

Deals found on 8/7

Showing 1-10 of 40 results
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Best time to book a flight from Glasgow Intl to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal 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 Portugal

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

Currently, January is the cheapest month in which you can book a flight from Glasgow Intl Airport to Portugal (average of £101). Flying from Glasgow Intl Airport to Portugal in August is currently the most expensive (average of £274). 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 GLA to PT?

Find hourly flight availability from Glasgow Intl to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 July 2025.

When flying from Glasgow Intl Airport to Portugal, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 18% versus a flight in the morning.

What is the cheapest day to fly from Glasgow Intl Airport to Portugal?

Use this chart to determine the cheapest time to fly return from Glasgow Intl to Portugal. Price data was last updated on 6 July 2025.

Travellers seeking maximum savings on their Glasgow Intl Airport to Portugal flight should consider departing on Sunday at midday when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated 11 July 2025.
Get a feel of what it's like to fly with Jet2, KLM, andAir France from Glasgow Intl Airport to Portugal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.3

Comfort

7.8

Overall

8.3

Boarding

8.2

Entertainment

6.3

Crew

8.8

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.
8.3
Very Good

Food

7.3

Comfort

7.8

Overall

8.3

Boarding

8.2

Entertainment

6.3

Crew

8.8

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.

Food

7.3

Comfort

7.8

Overall

8.3

Boarding

8.2

Entertainment

6.3

Crew

8.8

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.

Food

7.3

Comfort

7.8

Overall

8.3

Boarding

8.2

Entertainment

6.3

Crew

8.8

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.

Food

7.3

Comfort

7.8

Overall

8.3

Boarding

8.2

Entertainment

6.3

Crew

8.8

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.

Food

7.3

Comfort

7.8

Overall

8.3

Boarding

8.2

Entertainment

6.3

Crew

8.8

Reviews

1 / 16
8.0
Excellent

Anonymous,Mar 2025

GVA - LBA

Good other than the 15-20 min walk to boarding gate from terminal.

Related info for your journey

Find useful and relevant information for your journey from Glasgow Intl to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines to fly from Glasgow Intl Airport to Portugal one-way?

    £38 is the cheapest one-way deal found within the past few days, from easyJet. You may also be able to find cheap deals on Ryanair and Aer Lingus, with prices starting from £75 and £88, respectively.

  • What are the most popular routes from Glasgow Intl Airport to Portugal?

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Glasgow Intl Airport to Portugal (average of £101). Flying from Glasgow Intl Airport to Portugal in August is currently the most expensive (average of £274). 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

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Alternative routes for Glasgow Intl to Portugal

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Glasgow Intl to Portugal

Discover the top 6 airlines that operate flights from Glasgow Intl to Portugal. 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 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£76Average£211FlexibilityNo cancel feeOn-time86%
Search easyJet flights
RyanairCheapest£84Average£162FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Jet2Cheapest£136Average£345FlexibilityNo cancel feeOn-timeN/A
Search Jet2 flights
KLMCheapest£136Average£246FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£163Average£275FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£165Average£264FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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

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

Need flexible booking options for your flight to Portugal from Glasgow Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Glasgow Intl to Portugal flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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