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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 16/3. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — LON
29 Jan — 5 Feb1
1 adult
1 adult, Economy, 0 bags

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

Cheap flight deals from Glasgow Intl to London

Enter your travel dates to find the best prices.

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 30 December 2025.

Wed 31/1220:50GLA - LTN
Nonstop1h 10measyJet
Wed 7/108:50LTN - GLA
Nonstop1h 15measyJet
Deal found 28/12£67
Wed 31/1220:35GLA - LGW
Nonstop1h 25measyJet
Wed 7/109:40LGW - GLA
Nonstop1h 30measyJet
Deal found 28/12£77
Wed 31/1220:35GLA - LGW
Nonstop1h 25measyJet
Fri 2/109:25LGW - GLA
Nonstop1h 30measyJet
Deal found 29/12£87
Wed 31/1220:50GLA - LTN
Nonstop1h 10mMultiple Airlines
Sat 3/121:00LTN - GLA
1 stop9h 55mMultiple Airlines
Deal found 29/12£93
Wed 31/1217:00GLA - LHR
Nonstop1h 20mBritish Airways
Wed 7/120:00LHR - GLA
Nonstop1h 30mBritish Airways
Deal found 28/12£94
Wed 31/1220:35GLA - LGW
Nonstop1h 25mMultiple Airlines
Sat 3/122:30LGW - GLA
1 stop8h 25mMultiple Airlines
Deal found 29/12£97
Wed 31/1220:50GLA - LTN
Nonstop1h 10measyJet
Sun 4/108:25LTN - GLA
Nonstop1h 15measyJet
Deal found 29/12£99
Wed 31/1220:35GLA - LGW
Nonstop1h 25mMultiple Airlines
Wed 7/121:40LGW - GLA
1 stop9h 05mMultiple Airlines
Deal found 30/12£100
Wed 31/1219:20GLA - STN
Nonstop1h 15measyJet
Fri 2/109:05STN - GLA
Nonstop1h 20measyJet
Deal found 29/12£102
Wed 31/1219:20GLA - STN
Nonstop1h 15measyJet
Thu 1/121:05STN - GLA
Nonstop1h 15measyJet
Deal found 29/12£103
Wed 31/1211:40GLA - LHR
Nonstop1h 35mBritish Airways
Sun 4/108:00LHR - GLA
Nonstop1h 25mBritish Airways
Deal found 29/12£104
Tue 30/1220:40GLA - LTN
Nonstop1h 10measyJet
Thu 1/109:00LTN - GLA
Nonstop1h 15measyJet
Deal found 28/12£104

Find 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 30 December 2025.

Round-trip from

£44

One-way from

£21

Popular in

June

Cheapest in

January

Average price

£85

Good round-trip deal

£49 or less

Good one-way deal

£30 or less
easyJet
  • easyJet
  • 27/1-3/2
  • Nonstop
  • 2h 35m total
  • Glasgow to London
Search Deals
easyJet
  • easyJet
  • 16/3
  • Nonstop
  • 1h 25m 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).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£1 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Glasgow Intl to London (LON).
Search Deals
Price to beat on a one-way flight from Glasgow Intl to London (LON).
Search Deals

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 30 December 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

Fri 9/1

07:15-08:35

Nonstop1h 20m

London Stansted

Sun 11/1

21:25-22:40

Nonstop1h 15m

£45

GlasgowLondon

GLA - STN

GLASTN

Glasgow Intl

Wed 28/1

19:20-20:35

Nonstop1h 15m

London Stansted

Fri 30/1

09:05-10:25

Nonstop1h 20m

£45

GlasgowLondon

GLA - STN

GLASTN

Glasgow Intl

Thu 22/1

07:10-08:30

Nonstop1h 20m

London Stansted

Fri 23/1

09:05-10:25

Nonstop1h 20m

£45

GlasgowLondon

GLA - LGW

GLALGW

Glasgow Intl

Thu 26/3

08:20-09:55

Nonstop1h 35m

London Gatwick

Sun 29/3

21:40-23:05

Nonstop1h 25m

£45

GlasgowLondon

GLA - LTN

GLALTN

Glasgow Intl

Wed 18/3

06:45-08:00

Nonstop1h 15m

London Luton

Wed 18/3

18:50-20:05

Nonstop1h 15m

£45

GlasgowLondon

GLA - LTN

GLALTN

Glasgow Intl

Tue 17/2

15:45-16:55

Nonstop1h 10m

London Luton

Fri 20/2

16:55-18:10

Nonstop1h 15m

£46

GlasgowLondon

GLA - STN

GLASTN

Glasgow Intl

Sun 25/1

19:35-20:50

Nonstop1h 15m

London Stansted

Sun 1/2

21:25-22:40

Nonstop1h 15m

£47

GlasgowLondon

GLA - STN

GLASTN

Glasgow Intl

Fri 23/1

07:15-08:35

Nonstop1h 20m

London Stansted

Fri 30/1

09:05-10:25

Nonstop1h 20m

£47

GlasgowLondon

GLA - LTN

GLALTN

Glasgow Intl

Sat 28/3

20:40-21:55

Nonstop1h 15m

London Luton

Sun 29/3

18:05-19:20

Nonstop1h 15m

£47

GlasgowLondon

GLA - LTN

GLALTN

Glasgow Intl

Fri 27/2

07:00-08:15

Nonstop1h 15m

London Luton

Mon 2/3

09:00-10:15

Nonstop1h 15m

£47

Flights are sorted by cheapest return flights first.

Deals found on 29/12

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 26 December 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 £32). Flying from Glasgow Intl Airport to London in December is currently the most expensive (average of £50). 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 30 December 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 42% versus a flight in the morning.

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 27 December 2025.

Travellers seeking maximum savings on their Glasgow Intl Airport to London flight should consider departing on Saturday at midday when fares are most often at their lowest. Tuesday at midday 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 30 December 2025.

The most flights from GLA to LON are scheduled on a Tuesday (63 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost for a return flight from Glasgow Intl Airport to London?

How often are flights from Glasgow to London delayed?

About 13% of weekly flights between Glasgow and London have experienced delays in the past year, with the average delay time being 101 minutes.

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

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

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

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

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

Over the past year, British Airways have had the lowest number of delays on this route, with just 12% of flights being delayed.

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 30 December 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
1,854 reviews
Check prices

Entertainment

5.5

Comfort

6.7

Boarding

6.7

Overall

6.9

Crew

7.6

Food

5.9

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
1,854 reviews
easyJet
6.9
Okay
1,854 reviews
Check prices

Entertainment

5.5

Comfort

6.7

Boarding

6.7

Overall

6.9

Crew

7.6

Food

5.9

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
7,625 reviews
easyJet
6.9
Okay
1,854 reviews
Check prices

Entertainment

5.5

Comfort

6.7

Boarding

6.7

Overall

6.9

Crew

7.6

Food

5.9

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 £31 on this airline. Additional options worth looking into are British Airways and KLM, starting at £47 and £161 round-trip. These flights start at 58% 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 (90%), Finnair (90%), Japan Airlines (90%).

  • 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 £1,632, our data indicates the cheapest price to be £65. The most popular route (Glasgow Intl - London Heathrow), is priced around £86.

  • 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 £32). Flying from Glasgow Intl Airport to London in December is currently the most expensive (average of £50). 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
Luton
Slough
Hounslow
Gatwick
Ilford
Wembley
Hayes
Brentford
Colchester
Watford
Crawley
Bedford
Chelmsford
Romford
Eastbourne
Ipswich
Bishop's Stortford
Guildford

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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 30 December 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 30 December 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£38Average£80FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£68Average£133FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£161Average£305FlexibilityNo 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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