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Cheap flights from Glasgow Intl Airport to London from £21

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 30/10. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — LON
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Glasgow Intl to London are usually found in February or January, booked 68 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap flight deals from Glasgow Intl to London

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow Intl (GLA) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 September 2025.

Round-trip from

£48

One-way from

£21

Popular in

June

Cheapest in

February

Average price

£85

Good round-trip deal

£60 or less

Good one-way deal

£25 or less
easyJet
  • easyJet
  • 14/10-16/10
  • Nonstop
  • 2h 40m total
  • Glasgow to London
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easyJet
  • easyJet
  • 30/10
  • Nonstop
  • 1h 20m total
  • Glasgow to London
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£7 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£1 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Glasgow Intl to London (LON).
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Price to beat on a one-way flight from Glasgow Intl to London (LON).
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Find flight deals from Glasgow Intl to London

Cheapest flights from Glasgow Intl to London
Explore the most affordable flight options available from Glasgow Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Tue 14/1019:40GLA - STN
Nonstop1h 20measyJet
Thu 16/1010:35STN - GLA
Nonstop1h 20measyJet
Deal found 15/9£48
Tue 7/1021:55GLA - LGW
Nonstop1h 30measyJet
Sun 12/1021:35LGW - GLA
Nonstop1h 25measyJet
Deal found 14/9£48
Thu 20/1107:05GLA - LTN
Nonstop1h 15measyJet
Mon 24/1117:30LTN - GLA
Nonstop1h 15measyJet
Deal found 16/9£48
Mon 24/1119:20GLA - STN
Nonstop1h 15measyJet
Mon 1/1221:05STN - GLA
Nonstop1h 15measyJet
Deal found 16/9£50
Fri 12/1220:35GLA - LGW
Nonstop1h 25measyJet
Sun 14/1206:25LGW - GLA
Nonstop1h 30measyJet
Deal found 15/9£50
Fri 5/1215:05GLA - LTN
Nonstop1h 10measyJet
Sun 7/1208:25LTN - GLA
Nonstop1h 15measyJet
Deal found 14/9£50
Fri 3/1020:55GLA - LTN
Nonstop1h 10measyJet
Mon 6/1008:50LTN - GLA
Nonstop1h 15measyJet
Deal found 16/9£51
Thu 30/1007:10GLA - STN
Nonstop1h 20measyJet
Thu 6/1121:05STN - GLA
Nonstop1h 15measyJet
Deal found 14/9£51
Thu 16/1006:35GLA - LGW
Nonstop1h 35measyJet
Thu 23/1008:15LGW - GLA
Nonstop1h 30measyJet
Deal found 16/9£51
Thu 16/1020:50GLA - LTN
Nonstop1h 10measyJet
Thu 23/1008:50LTN - GLA
Nonstop1h 15measyJet
Deal found 16/9£51
Wed 24/920:15GLA - STN
Nonstop1h 20measyJet
Tue 30/908:55STN - GLA
Nonstop1h 20measyJet
Deal found 14/9£52
Fri 5/1220:35GLA - LGW
Nonstop1h 25measyJet
Sun 7/1209:00LGW - GLA
Nonstop1h 30measyJet
Deal found 14/9£52

Cheapflights Fare Finder

 
Customise your flight search to find flights from Glasgow Intl to London 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 17 September 2025.
Use the filters below to find and compare flights from Glasgow Intl Airport to London that are best for you.

Fly from

Glasgow Intl

Fly to

London

Route

Depart

Return

Price

GlasgowLondon

GLA - STN

GLASTN

Glasgow Intl

Tue 14/10

19:40-21:00

Nonstop1h 20m

London Stansted

Thu 16/10

10:35-11:55

Nonstop1h 20m

£48

GlasgowLondon

GLA - LGW

GLALGW

Glasgow Intl

Tue 7/10

21:55-23:25

Nonstop1h 30m

London Gatwick

Sun 12/10

21:35-23:00

Nonstop1h 25m

£48

GlasgowLondon

GLA - STN

GLASTN

Glasgow Intl

Mon 24/11

19:20-20:35

Nonstop1h 15m

London Stansted

Mon 1/12

09:15-10:35

Nonstop1h 20m

£50

GlasgowLondon

GLA - LGW

GLALGW

Glasgow Intl

Fri 12/12

20:35-22:00

Nonstop1h 25m

London Gatwick

Sun 14/12

06:25-07:55

Nonstop1h 30m

£50

GlasgowLondon

GLA - LTN

GLALTN

Glasgow Intl

Fri 31/10

07:00-08:15

Nonstop1h 15m

London Luton

Sun 2/11

08:25-09:40

Nonstop1h 15m

£51

GlasgowLondon

GLA - LGW

GLALGW

Glasgow Intl

Mon 20/10

06:45-08:20

Nonstop1h 35m

London Gatwick

Sun 26/10

06:25-07:55

Nonstop1h 30m

£51

GlasgowLondon

GLA - LTN

GLALTN

Glasgow Intl

Sat 15/11

20:40-21:55

Nonstop1h 15m

London Luton

Mon 17/11

17:30-18:45

Nonstop1h 15m

£51

GlasgowLondon

GLA - LTN

GLALTN

Glasgow Intl

Thu 16/10

18:10-19:20

Nonstop1h 10m

London Luton

Thu 23/10

08:50-10:05

Nonstop1h 15m

£51

GlasgowLondon

GLA - LTN

GLALTN

Glasgow Intl

Mon 24/11

09:50-11:05

Nonstop1h 15m

London Luton

Mon 1/12

09:00-10:15

Nonstop1h 15m

£51

GlasgowLondon

GLA - STN

GLASTN

Glasgow Intl

Thu 20/11

07:10-08:30

Nonstop1h 20m

London Stansted

Mon 24/11

21:05-22:20

Nonstop1h 15m

£52

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 60 results
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Best time to book a flight from Glasgow Intl to London

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

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

Use this chart to determine the optimal time to book a return flight from Glasgow Intl to London. Price data was last updated on 12 September 2025.

Booking 68 days in advance of your planned departure date is, on average, the best time to get cheap flights from Glasgow Intl Airport to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Glasgow Intl Airport to London (average of £112). Flying from Glasgow Intl Airport to London in August is currently the most expensive (average of £164). 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 LON?

Find hourly flight availability from Glasgow Intl to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 September 2025.

When flying from Glasgow Intl Airport to London, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 79% versus a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly return from Glasgow Intl to London. Price data was last updated on 14 September 2025.

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

Weekly flight availability from Glasgow Intl Airport to London

Explore weekly flight availability from Glasgow Intl to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 September 2025.

The most flights from GLA to LON are scheduled on a Tuesday (70 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 17 September 2025.
Read through reviews of airlines operating flights from Glasgow Intl Airport to London, such as easyJet and British Airways. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
easyJet
6.9
Okay
1,820 reviews
Check prices

Entertainment

5.5

Crew

7.6

Boarding

6.7

Food

5.9

Comfort

6.7

Overall

6.9

Reviews

1 / 20
4.0
Okay

Matt,Sept 2025

JTR - LGW

Boarding was a disaster. They are Nazis with the bags.
easyJet
6.9
Okay
1,820 reviews
easyJet
6.9
Okay
1,820 reviews
Check prices

Entertainment

5.5

Crew

7.6

Boarding

6.7

Food

5.9

Comfort

6.7

Overall

6.9

Reviews

1 / 20
4.0
Okay

Matt,Sept 2025

JTR - LGW

Boarding was a disaster. They are Nazis with the bags.
British Airways
6.7
Okay
7,363 reviews
easyJet
6.9
Okay
1,820 reviews
Check prices

Entertainment

5.5

Crew

7.6

Boarding

6.7

Food

5.9

Comfort

6.7

Overall

6.9

Reviews

1 / 20
4.0
Okay

Matt,Sept 2025

JTR - LGW

Boarding was a disaster. They are Nazis with the bags.

Related info for your journey

Find useful and relevant information for your journey from Glasgow Intl to London. 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 Glasgow Intl Airport to London?

    easyJet and British Airways can get you from Glasgow Intl Airport to London in just under 1h 20m. Your travel time will be generally consistent. The distance between Glasgow Intl Airport and London is about 334 mi. Generally, flights for this route are direct.

  • What are the cheapest airlines flying from Glasgow Intl Airport to London round-trip?

    Our cheapest airline available from Glasgow Intl Airport to London is easyJet. Our recent data shows that you can find tickets from as low as £38 on this airline. Additional options worth looking into are British Airways and KLM, starting at £47 and £160 round-trip. These flights start at 49% lower than the current average price 3 months from now.

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

    The most popular route from Glasgow Intl Airport to London is Glasgow Intl - London Heathrow. You may also consider Glasgow Intl - London Gatwick or Glasgow Intl - London Luton.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Glasgow Intl Airport to London on time: American Airlines (84%), Finnair (78%), Iberia (77%).

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

    Looking for the cheapest flight from Glasgow Intl Airport to London? While on average our users pay £1,378, our data indicates the cheapest price to be £65. The most popular route (Glasgow Intl - London Heathrow), is priced around £73.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Glasgow Intl Airport to London (average of £112). Flying from Glasgow Intl Airport to London in August is currently the most expensive (average of £164). 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 London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Slough
Gatwick
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Winchester
Chichester
Ipswich
Dartford
Guildford
Brentford
Bishop's Stortford
Romford

Browse thousands of different options on Cheapflights for your next trip

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Fly from Glasgow Intl to London on these airlines

Choose from the following airlines for your flight from Glasgow Intl to London. Flights are based on user searches made on Cheapflights and were last updated on 17 September 2025.
easyJet flights from Glasgow Intl to London
British Airways flights from Glasgow Intl to London

Top 3 airlines flying from Glasgow Intl to London

Discover the top 3 airlines that operate flights from Glasgow Intl to London. 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 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£38Average£79FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£47Average£129FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£160Average£290FlexibilityNo cancel feeOn-time75%
Search KLM 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 Glasgow Intl to London?

Deals for Glasgow Intl to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Glasgow Intl to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes, we can. To see specific flights from Glasgow Intl to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for Glasgow Intl to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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