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Cheap flights from Portsmouth to Glasgow from £18

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 31/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — GLA
9 Jul — 16 Jul1
1 adult

Cheapflights Tip: The best prices from Portsmouth to Glasgow are usually found in March or January, booked 78 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Portsmouth to Glasgow

Keep the following information in mind while searching for Portsmouth to Glasgow flight deals. Data was last updated 4 July 2025.

Round-trip from

£67

One-way from

£18

Popular in

August

Cheapest in

March

Average price

£130
easyJet
  • easyJet
  • 2/9-7/9
  • Nonstop
  • 2h 45m total
  • Portsmouth to Glasgow
Search Deals
easyJet
  • easyJet
  • 31/8
  • Nonstop
  • 1h 25m total
  • Portsmouth to Glasgow
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£8 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Portsmouth to Glasgow

Cheapest flights from Portsmouth to Glasgow
Explore the most affordable flight options available from Portsmouth to Glasgow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.

Tue 2/912:25SOU - GLA
Nonstop1h 25measyJet
Sun 7/914:45GLA - SOU
Nonstop1h 20measyJet
Deal found 3/7£67
Wed 3/909:00SOU - GLA
Nonstop1h 25mMultiple Airlines
Wed 10/920:10GLA - SOU
1 stop12h 30mMultiple Airlines
Deal found 2/7£111
Sat 9/808:55SOU - GLA
1 stop10h 35mAer Lingus
Sat 16/813:40GLA - SOU
1 stop5h 35mAer Lingus
Deal found 3/7£208

Cheapflights Fare Finder

Customise your flight search to find flights from Portsmouth to Glasgow 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 4 July 2025.
Use the filters below to find and compare flights from Portsmouth to Glasgow that are best for you.

Fly from

Portsmouth

Fly to

Glasgow

Route

Depart

Return

Price

SouthamptonGlasgow

SOU - GLA

SOUGLA

Southampton Eastleigh

Tue 2/9

12:25-13:50

Nonstop1h 25m

Glasgow Intl

Sun 7/9

14:45-16:05

Nonstop1h 20m

£67

SouthamptonGlasgow

SOU - GLA

SOUGLA

Southampton Eastleigh

Wed 3/9

09:00-10:25

Nonstop1h 25m

Glasgow Intl

Wed 10/9

20:10-08:40

1 stop12h 30m

£111

SouthamptonGlasgow

SOU - GLA

SOUGLA

Southampton Eastleigh

Sat 9/8

08:55-19:30

1 stop10h 35m

Glasgow Intl

Sat 16/8

13:40-19:15

1 stop5h 35m

£208

SouthamptonGlasgow

SOU - GLA

SOUGLA

Southampton Eastleigh

Sun 31/8

21:30-22:55

Nonstop1h 25m

£18

SouthamptonGlasgow

SOU - GLA

SOUGLA

Southampton Eastleigh

Fri 31/10

08:55-21:55

1 stop13h 00m

£100

SouthamptonGlasgow

SOU - GLA

SOUGLA

Southampton Eastleigh

Thu 2/10

08:55-19:30

1 stop10h 35m

£149

SouthamptonGlasgow

SOU - GLA

SOUGLA

Southampton Eastleigh

Thu 2/10

08:55-22:25

2 stops13h 30m

£226

Flights are sorted by cheapest return flights first.

Deals found on 3/7

Best time to book a flight from Portsmouth to Glasgow

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

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

Use this chart to determine the optimal time to book a return flight from Portsmouth to Glasgow. Price data was last updated on 27 June 2025.

The price you pay for your flight from Portsmouth to Glasgow may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, April is the cheapest month in which you can book a flight from Portsmouth to Glasgow (average of £97). Flying from Portsmouth to Glasgow 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 P0R to GLA?

Find hourly flight availability from Portsmouth to Glasgow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 July 2025.

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

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

Use this chart to determine the cheapest time to fly return from Portsmouth to Glasgow. Price data was last updated on 22 September 2024.

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

Reviews of airlines servicing Glasgow

Get insights into the airlines that provide service to Glasgow. 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. Reviews last updated 4 July 2025.
Get a feel of what it's like to fly with Aer Lingus, easyJet, andBritish Airways from Portsmouth to Glasgow by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.1
Good
1,144 reviews
Check prices

Entertainment

6.8

Overall

7.1

Crew

8.0

Food

6.4

Comfort

7.0

Boarding

7.2

Reviews

1 / 20
6.0
Good

Tim Hunter,May 2025

LHR - DUB

In the economy section one of the bathrooms was reserved for first class which made for very long lines in for the bathrooms. The temperature for the flight was very cold. I ended up catching a mild cold on the way home. No blankets were handed out / offered. The food service was OK but no napkins were given with the meals -- very weird. The crew as OK but definitely not nice and welcoming.
Aer Lingus
7.1
Good
1,144 reviews
Aer Lingus
7.1
Good
1,144 reviews
Check prices

Entertainment

6.8

Overall

7.1

Crew

8.0

Food

6.4

Comfort

7.0

Boarding

7.2

Reviews

1 / 20
6.0
Good

Tim Hunter,May 2025

LHR - DUB

In the economy section one of the bathrooms was reserved for first class which made for very long lines in for the bathrooms. The temperature for the flight was very cold. I ended up catching a mild cold on the way home. No blankets were handed out / offered. The food service was OK but no napkins were given with the meals -- very weird. The crew as OK but definitely not nice and welcoming.
easyJet
6.9
Okay
1,816 reviews
Aer Lingus
7.1
Good
1,144 reviews
Check prices

Entertainment

6.8

Overall

7.1

Crew

8.0

Food

6.4

Comfort

7.0

Boarding

7.2

Reviews

1 / 20
6.0
Good

Tim Hunter,May 2025

LHR - DUB

In the economy section one of the bathrooms was reserved for first class which made for very long lines in for the bathrooms. The temperature for the flight was very cold. I ended up catching a mild cold on the way home. No blankets were handed out / offered. The food service was OK but no napkins were given with the meals -- very weird. The crew as OK but definitely not nice and welcoming.
British Airways
6.6
Okay
7,093 reviews
Aer Lingus
7.1
Good
1,144 reviews
Check prices

Entertainment

6.8

Overall

7.1

Crew

8.0

Food

6.4

Comfort

7.0

Boarding

7.2

Reviews

1 / 20
6.0
Good

Tim Hunter,May 2025

LHR - DUB

In the economy section one of the bathrooms was reserved for first class which made for very long lines in for the bathrooms. The temperature for the flight was very cold. I ended up catching a mild cold on the way home. No blankets were handed out / offered. The food service was OK but no napkins were given with the meals -- very weird. The crew as OK but definitely not nice and welcoming.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Glasgow. 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 Portsmouth to Glasgow one-way?

    £18 is the cheapest one-way deal found within the past few days, from easyJet. You may also be able to find cheap deals on Aer Lingus and British Airways, with prices starting from £149 and £218, respectively.

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

    No one likes to see their flight delayed. When booking a flight from Portsmouth to Glasgow consider choosing China Southern (88%), Malaysia Airlines (81%) or Iberia (77%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Portsmouth to Glasgow?

    Looking for the cheapest flight from Portsmouth to Glasgow? While on average our users pay £117, our data indicates the cheapest price to be £39. The most popular route (Southampton Eastleigh - Glasgow Intl), is priced around £64.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Portsmouth to Glasgow (average of £97). Flying from Portsmouth to Glasgow 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.

See more FAQs

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Top 8 airlines flying from Portsmouth to Glasgow

Discover the top 8 airlines that operate flights from Portsmouth to Glasgow. 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 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£14Average£57FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
RyanairCheapest£28Average£57FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£29Average£83FlexibilityNo cancel feeOn-time86%
Search easyJet flights
easyJetCheapest£56Average£82FlexibilityNo cancel feeOn-time70%
Search easyJet flights
British AirwaysCheapest£59Average£172FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£75Average£138FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LoganairCheapest£139Average£217FlexibilityNo cancel feeOn-time79%
Search Loganair flights
KLMCheapest£160Average£240FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Portsmouth to Glasgow?

Cheapflights makes it easy to find Portsmouth to Glasgow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

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

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

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Of course! You can now track prices for flights from Portsmouth to Glasgow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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