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Cheap flights from Glasgow Intl Airport to Portsmouth from £23

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 22/3. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — LHR
26 Feb — 5 Mar1
1 adult

The best prices from Glasgow Intl to Portsmouth are usually found in March or February, booked 67 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from Glasgow Intl to Portsmouth

Keep the following information in mind while searching for Glasgow Intl to Portsmouth flight deals. Data was last updated 21 February 2025.

Round-trip from

£36

One-way from

£23

Popular in

November

Cheapest in

March

Average price

£89
easyJet
  • easyJet
  • 28/4-29/4
  • Nonstop
  • 2h 45m total
  • Glasgow to Portsmouth
Search Deals
easyJet
  • easyJet
  • 22/3
  • Nonstop
  • 1h 20m total
  • Glasgow to Portsmouth
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£15 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Glasgow Intl to Portsmouth

Cheapest flights from Glasgow Intl to Portsmouth
Explore the most affordable flight options available from Glasgow Intl to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Sun 6/414:45GLA - SOU
Nonstop1h 20measyJet
Sun 13/416:35SOU - GLA
Nonstop1h 25measyJet
Deal found 20/2£86
Mon 28/407:55GLA - SOU
1 stop3h 25mMultiple Airlines
Wed 30/408:55SOU - GLA
1 stop4h 05mMultiple Airlines
Deal found 20/2£147
Sat 18/1006:00GLA - SOU
1 stop11h 00mKLM
Sun 2/1109:30SOU - GLA
1 stop12h 30mKLM
Deal found 20/2£253
Sat 30/813:40GLA - SOU
1 stop5h 35mAer Lingus
Sat 6/908:55SOU - GLA
1 stop10h 35mAer Lingus
Deal found 20/2£311
Mon 28/419:30GLA - SOU
2 stops16h 30mBritish Airways
Wed 30/416:45SOU - GLA
2 stops16h 30mBritish Airways
Deal found 20/2£478
Sun 6/411:55GLA - SOU
2 stops20h 15mLoganair
Sun 13/419:55SOU - GLA
2 stops24h 25mLoganair
Deal found 20/2£945

Find flights from Glasgow Intl to Portsmouth within your budget

Customise your flight search to find flights from Glasgow Intl to Portsmouth 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 21 February 2025.

Fly from

Glasgow Intl

Fly to

Portsmouth

Route

Depart

Return

Price

GlasgowSouthampton

GLA - SOU

GLASOU

Glasgow Intl

Mon 7/4

13:35-14:55

Nonstop1h 20m

Southampton Eastleigh

Mon 14/4

15:25-16:50

Nonstop1h 25m

£53

GlasgowSouthampton

GLA - SOU

GLASOU

Glasgow Intl

Mon 28/4

07:55-11:20

1 stop3h 25m

Southampton Eastleigh

Wed 30/4

08:55-13:00

1 stop4h 05m

£147

GlasgowSouthampton

GLA - SOU

GLASOU

Glasgow Intl

Sat 3/5

16:30-08:25

1 stop15h 55m

Southampton Eastleigh

Sun 11/5

08:55-19:30

1 stop10h 35m

£313

GlasgowSouthampton

GLA - SOU

GLASOU

Glasgow Intl

Sat 10/5

10:25-08:45

1 stop22h 20m

Southampton Eastleigh

Sat 24/5

17:35-23:10

1 stop5h 35m

£322

GlasgowSouthampton

GLA - SOU

GLASOU

Glasgow Intl

Mon 28/4

19:30-12:00

2 stops16h 30m

Southampton Eastleigh

Wed 30/4

16:45-09:15

2 stops16h 30m

£478

GlasgowSouthampton

GLA - SOU

GLASOU

Glasgow Intl

Sun 6/4

11:55-08:10

2 stops20h 15m

Southampton Eastleigh

Sun 13/4

19:55-20:20

2 stops24h 25m

£945

GlasgowSouthampton

GLA - SOU

GLASOU

Glasgow Intl

Sat 22/3

07:50-09:10

Nonstop1h 20m

£23

GlasgowSouthampton

GLA - SOU

GLASOU

Glasgow Intl

Thu 13/3

07:10-12:55

2 stops29h 45m

£130

GlasgowSouthampton

GLA - SOU

GLASOU

Glasgow Intl

Fri 28/2

12:45-18:55

1 stop6h 10m

£216

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Best time to book a flight from Glasgow Intl to Portsmouth

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

Travel insights for flights from Glasgow Intl to Portsmouth

Get recent, data-driven insights about flights from Glasgow Intl to Portsmouth including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Glasgow Intl Airport to Portsmouth?

Use this chart to determine the optimal time to book a return flight from Glasgow Intl to Portsmouth. Price data was last updated on 14 February 2025.

The best time to book flights from Glasgow Intl Airport to Portsmouth is 67 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Glasgow Intl Airport to Portsmouth (average of £112). Flying from Glasgow Intl Airport to Portsmouth in August is currently the most expensive (average of £163). 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 P0R?

Find hourly flight availability from Glasgow Intl to Portsmouth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Glasgow Intl Airport to Portsmouth as you normally would.

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

Use this chart to determine the cheapest time to fly return from Glasgow Intl to Portsmouth. Price data was last updated on 16 December 2024.

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

Rainfall in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portsmouth ranges from 25.0 - 76.0 inches per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Portsmouth when rainfall is around 25.0 mm.

Temperature in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portsmouth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Portsmouth

Get insights into the airlines that provide service to Portsmouth. 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 Portsmouth. Reviews last updated 21 February 2025.
KLM
7.8
Good
1,333 reviews
Check prices

Crew

8.4

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.3

Comfort

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,333 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Crew

8.4

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.3

Comfort

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Aer Lingus
7.0
Good
1,070 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Crew

8.4

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.3

Comfort

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

easyJet
6.9
Okay
1,816 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Crew

8.4

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.3

Comfort

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

British Airways
6.6
Okay
6,762 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Crew

8.4

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.3

Comfort

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

Find useful and relevant information for your journey from Glasgow Intl to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the most reliable airlines from Glasgow Intl Airport to Portsmouth?

    The top 3 most reliable airlines when flying from Glasgow Intl Airport to Portsmouth are Royal Air Maroc (92%), Malaysia Airlines (87%) and Kenya Airways (87%).

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

    On average you can expect to pay £1,380 for a flight from Glasgow Intl Airport to Portsmouth. The cheapest flight overall is £42 while the most popular route, (Glasgow Intl - Southampton Eastleigh) is currently priced at £41.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Glasgow Intl to Portsmouth 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 Portsmouth?

    Currently, January is the cheapest month in which you can book a flight from Glasgow Intl Airport to Portsmouth (average of £112). Flying from Glasgow Intl Airport to Portsmouth in August is currently the most expensive (average of £163). 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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Top 4 airlines flying from Glasgow Intl to Portsmouth

Discover the top 4 airlines that operate flights from Glasgow Intl to Portsmouth. 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 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£46Average£97FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£69Average£156FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LoganairCheapest£111Average£205FlexibilityNo cancel feeOn-time79%
Search Loganair flights
KLMCheapest£208Average£266FlexibilityNo cancel feeOn-time75%
Search KLM flights

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Users can book flights with no change fees policies with our dedicated filters. Book flights from Glasgow Intl to Portsmouth flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on Glasgow Intl to Portsmouth 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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