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Cheap flights from Portugal to Glasgow Intl Airport from £35

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 25/6. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — GLA
11 Jul — 18 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portugal to Glasgow Intl

Enter your travel dates to find the best prices.

Cheapest flights from Portugal to Glasgow Intl
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 11 June 2026.

Thu 9/709:10
FAO
-
GLA
1 stop24h 30m
Multiple Airlines
Wed 22/706:30
GLA
-
FAO
Nonstop3h 15m
Multiple Airlines
Deal found 8/6£81
Thu 9/709:10
FAO
-
GLA
1 stop9h 25m
Multiple Airlines
Tue 28/706:30
GLA
-
FAO
Nonstop3h 15m
Multiple Airlines
Deal found 10/6£87
Wed 22/717:45
OPO
-
GLA
1 stop13h 55m
Multiple Airlines
Wed 29/706:30
GLA
-
OPO
1 stop13h 50m
Multiple Airlines
Deal found 9/6£101
Fri 10/721:30
OPO
-
GLA
1 stop11h 30m
Multiple Airlines
Mon 13/720:40
GLA
-
OPO
1 stop10h 40m
Multiple Airlines
Deal found 7/6£105
Sat 11/721:50
OPO
-
GLA
1 stop10h 30m
Multiple Airlines
Tue 14/709:10
GLA
-
OPO
1 stop14h 30m
Multiple Airlines
Deal found 10/6£111
Thu 9/706:05
FAO
-
GLA
2 stops24h 55m
Ryanair
Wed 22/715:40
GLA
-
FAO
1 stop7h 50m
Ryanair
Deal found 7/6£111
Wed 22/705:55
LIS
-
GLA
1 stop5h 35m
Multiple Airlines
Wed 29/715:40
GLA
-
LIS
Nonstop3h 10m
Multiple Airlines
Deal found 9/6£114
Wed 8/717:45
OPO
-
GLA
1 stop13h 55m
Multiple Airlines
Tue 14/709:10
GLA
-
OPO
1 stop14h 30m
Multiple Airlines
Deal found 10/6£114
Wed 15/720:20
LIS
-
GLA
1 stop11h 20m
Multiple Airlines
Sun 19/706:20
GLA
-
LIS
Nonstop3h 10m
Multiple Airlines
Deal found 6/6£117
Thu 23/707:30
FAO
-
GLA
2 stops23h 30m
Ryanair
Thu 30/709:05
GLA
-
FAO
1 stop7h 10m
Ryanair
Deal found 8/6£117
Fri 19/609:45
OPO
-
GLA
Nonstop2h 40m
Multiple Airlines
Mon 22/622:20
GLA
-
OPO
2 stops34h 50m
Multiple Airlines
Deal found 9/6£118
Thu 9/721:30
OPO
-
GLA
1 stop12h 10m
Multiple Airlines
Mon 13/720:40
GLA
-
OPO
1 stop10h 40m
Multiple Airlines
Deal found 10/6£121

Find 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 11 June 2026.

Round-trip from

£81

One-way from

£35

Popular in

October

Cheapest in

December

Good one-way deal

£65 or less
Jet2
  • Jet2
  • 9/7-22/7
  • 1 total stop
  • 27h 45m total
  • Portugal to Glasgow
Search Deals
Jet2
  • Jet2
  • 25/6
  • Nonstop
  • 3h 25m total
  • Portugal to Glasgow
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£19 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Price to beat on a one-way flight from Portugal to Glasgow Intl.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portugal 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 11 June 2026.
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

Cheapest return flight

FaroGlasgow

FAO - GLA

FAOGLA

Faro

Thu 9/7

09:10-09:40

1 stop24h 30m

Glasgow Intl

Wed 22/7

06:30-09:45

Nonstop3h 15m

£81

PortoGlasgow

OPO - GLA

OPOGLA

Porto

Fri 10/7

21:30-09:00

1 stop11h 30m

Glasgow Intl

Mon 13/7

13:35-23:59

2 stops10h 24m

£116

PortoGlasgow

OPO - GLA

OPOGLA

Porto

Wed 22/7

17:45-08:40

2 stops14h 55m

Glasgow Intl

Wed 29/7

15:40-09:10

2 stops17h 30m

£128

LisbonGlasgow

LIS - GLA

LISGLA

Lisbon Humberto Delgado

Wed 15/7

07:25-07:40

2 stops24h 15m

Glasgow Intl

Sun 19/7

06:20-09:30

Nonstop3h 10m

£129

FaroGlasgow

FAO - GLA

FAOGLA

Faro

Thu 23/7

09:10-18:35

1 stop9h 25m

Glasgow Intl

Thu 30/7

06:30-09:45

Nonstop3h 15m

£132

LisbonGlasgow

LIS - GLA

LISGLA

Lisbon Humberto Delgado

Wed 22/7

05:55-11:30

1 stop5h 35m

Glasgow Intl

Wed 29/7

05:55-17:25

1 stop11h 30m

£136

LisbonGlasgow

LIS - GLA

LISGLA

Lisbon Humberto Delgado

Tue 8/9

20:00-20:45

2 stops24h 45m

Glasgow Intl

Wed 16/9

07:45-20:45

1 stop13h 00m

£140

FaroGlasgow

FAO - GLA

FAOGLA

Faro

Mon 6/7

20:45-23:55

Nonstop3h 10m

Glasgow Intl

Tue 14/7

06:30-09:45

Nonstop3h 15m

£142

LisbonGlasgow

LIS - GLA

LISGLA

Lisbon Humberto Delgado

Sun 12/7

06:40-08:45

2 stops50h 05m

Glasgow Intl

Sun 19/7

06:20-09:30

Nonstop3h 10m

£143

FaroGlasgow

FAO - GLA

FAOGLA

Faro

Thu 9/7

15:50-07:00

2 stops15h 10m

Glasgow Intl

Wed 22/7

07:45-20:55

2 stops13h 10m

£144

Flights are sorted by cheapest return flights first.

Deals found on 9/6

Showing 1-10 of 56 resultsSorted by cheapest first
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6

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.
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 Portugal to Glasgow Intl Airport

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

Currently, October is the cheapest month in which you can book a flight from Portugal to Glasgow Intl Airport (average of £27). Flying from Portugal to Glasgow Intl Airport in May is currently the most expensive (average of £143). 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 11 June 2026.

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 evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 68% on airfare.

How often are flights from Portugal to Glasgow delayed?

About 31% of weekly flights between Portugal and Glasgow have experienced delays in the past year, with the average delay time being 137 minutes.

What is the most punctual flight time for Portugal to Glasgow flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Sunday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Portugal to Glasgow flights?

Over the past year, easyJet have had the lowest number of delays on this route, with just 31% of flights being delayed.

Reviews of airlines servicing Glasgow Intl

Get insights into the airlines that provide service to Glasgow Intl. 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 Glasgow Intl. Reviews last updated 11 June 2026.
Read through reviews of airlines operating flights from Portugal to Glasgow Intl Airport, such as British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
8,035 reviews
Check prices

Crew

7.7

Overall

6.7

Comfort

6.8

Food

6.4

Boarding

6.9

Entertainment

6.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.
British Airways
6.7
Okay
8,035 reviews
British Airways
6.7
Okay
8,035 reviews
Check prices

Crew

7.7

Overall

6.7

Comfort

6.8

Food

6.4

Boarding

6.9

Entertainment

6.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.

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.

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

    Ryanair and easyJet can get you from Portugal to Glasgow Intl Airport in just under 2h 40m. Your travel time can differ by up to 12h 15m. The distance from Portugal to Glasgow Intl Airport is about 1028 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Portugal to Glasgow Intl Airport one-way?

    For one-way options, check prices for Jet2. According to our data, you can fly for as low as £38. Users have also found prices from £40 and £57 on easyJet and Ryanair, respectively.

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

    Most travelers choose Porto - Glasgow Intl, Lisbon Humberto Delgado - Glasgow Intl or Faro - Glasgow Intl when deciding on the best route from Portugal to Glasgow Intl Airport.

  • What are the cheapest flights from Portugal to Glasgow Intl Airport?

    While on average a flight from Portugal to Glasgow Intl Airport is generally £129, our data shows the cheapest flight currently is £113. When looking at the most popular route, (Porto - Glasgow Intl), you can expect to pay £111 for that flight.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Portugal to Glasgow Intl Airport (average of £27). Flying from Portugal to Glasgow Intl Airport in May is currently the most expensive (average of £143). 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
Kilmarnock
Dunoon
Dumbarton
Arrochar
Clydebank
East Kilbride
Largs
Renfrew
Inveraray
Rothesay
Alexandria
Tarbert
Balloch

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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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Duesseldorf Intl to Glasgow Intl flights
Alicante to Glasgow Intl flights
Hamburg to Prestwick flights
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Munich to Prestwick flights
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Top airline flying from Portugal to Glasgow Intl

Discover the top airline that operate flights from Portugal to Glasgow Intl. 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 June 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£231Average£329FlexibilityNo cancel feeOn-time70%
Search British Airways 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 Portugal to Glasgow Intl?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Glasgow Intl from Portugal today with Cheapflights!

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!

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