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Cheap flights from Glasgow to London from £20

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — LON
1 May — 8 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Glasgow 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 to London

Enter your travel dates to find the best prices.

Cheapest flights from Glasgow to London
Explore the most affordable flight options available from Glasgow to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 April 2026.

Wed 6/507:05
GLA
-
STN
Nonstop1h 20m
easyJet
Wed 6/521:05
STN
-
GLA
Nonstop1h 15m
easyJet
Deal found 1/4£39
Fri 17/420:35
GLA
-
STN
Nonstop1h 20m
easyJet
Mon 20/422:25
STN
-
GLA
Nonstop1h 15m
easyJet
Deal found 29/3£39
Thu 9/408:05
GLA
-
STN
Nonstop1h 30m
Ryanair
Sun 12/406:45
STN
-
GLA
Nonstop1h 35m
Ryanair
Deal found 28/3£41
Wed 1/421:10
GLA
-
STN
Nonstop1h 30m
Ryanair
Sat 4/419:35
STN
-
GLA
Nonstop1h 35m
Ryanair
Deal found 27/3£42
Fri 10/421:15
GLA
-
STN
Nonstop1h 30m
Ryanair
Sat 11/407:25
STN
-
GLA
Nonstop1h 35m
Ryanair
Deal found 28/3£42
Fri 10/721:15
GLA
-
STN
Nonstop1h 30m
Ryanair
Sun 12/706:45
STN
-
GLA
Nonstop1h 35m
Ryanair
Deal found 31/3£43
Thu 2/408:05
GLA
-
STN
Nonstop1h 30m
Ryanair
Mon 6/406:05
STN
-
GLA
Nonstop1h 35m
Ryanair
Deal found 27/3£44
Fri 22/520:35
GLA
-
STN
Nonstop1h 20m
easyJet
Mon 25/522:25
STN
-
GLA
Nonstop1h 15m
easyJet
Deal found 31/3£45
Fri 3/421:15
GLA
-
STN
Nonstop1h 30m
Ryanair
Sun 5/406:45
STN
-
GLA
Nonstop1h 35m
Ryanair
Deal found 30/3£45
Fri 10/421:15
GLA
-
STN
Nonstop1h 30m
Ryanair
Mon 13/406:05
STN
-
GLA
Nonstop1h 35m
Ryanair
Deal found 27/3£48
Tue 21/416:00
GLA
-
LTN
Nonstop1h 10m
easyJet
Thu 23/407:30
LTN
-
GLA
Nonstop1h 20m
easyJet
Deal found 29/3£50
Fri 17/421:00
GLA
-
LTN
Nonstop1h 10m
easyJet
Mon 20/408:50
LTN
-
GLA
Nonstop1h 20m
easyJet
Deal found 30/3£51

Find flight deals from Glasgow to London

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow (GG1) 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 1 April 2026.

Round-trip from

£39

One-way from

£20

Popular in

July

Cheapest in

January

Average price

£81
easyJet
  • easyJet
  • 6/5-6/5
  • Nonstop
  • 2h 35m total
  • Glasgow to London
Search Deals
Ryanair
  • Ryanair
  • 4/7
  • Nonstop
  • 1h 30m total
  • Glasgow to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£8 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Glasgow 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 1 April 2026.
Use the filters below to find and compare flights from Glasgow to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

GlasgowLondon

GLA - STN

GLASTN

Glasgow Intl

Wed 6/5

07:05-08:25

Nonstop1h 20m

London Stansted

Wed 6/5

21:05-22:20

Nonstop1h 15m

£39

GlasgowLondon

GLA - STN

GLASTN

Glasgow Intl

Fri 22/5

20:35-21:55

Nonstop1h 20m

London Stansted

Mon 25/5

22:25-23:40

Nonstop1h 15m

£46
Fastest return journey

GlasgowLondon

GLA - LTN

GLALTN

Glasgow Intl

Wed 22/4

21:40-22:50

Nonstop1h 10m

London Luton

Fri 24/4

19:05-20:20

Nonstop1h 15m

£51

GlasgowLondon

GLA - LTN

GLALTN

Glasgow Intl

Mon 27/4

21:10-22:20

Nonstop1h 10m

London Luton

Tue 28/4

08:50-10:10

Nonstop1h 20m

£51

GlasgowLondon

GLA - LTN

GLALTN

Glasgow Intl

Wed 29/4

17:20-18:30

Nonstop1h 10m

London Luton

Wed 6/5

15:30-16:50

Nonstop1h 20m

£51

GlasgowLondon

GLA - LTN

GLALTN

Glasgow Intl

Fri 24/4

21:00-22:10

Nonstop1h 10m

London Luton

Sun 26/4

07:15-08:35

Nonstop1h 20m

£51

GlasgowLondon

GLA - LTN

GLALTN

Glasgow Intl

Sat 25/4

15:05-16:20

Nonstop1h 15m

London Luton

Sat 2/5

16:50-18:05

Nonstop1h 15m

£51

GlasgowLondon

GLA - STN

GLASTN

Glasgow Intl

Mon 13/4

20:35-21:55

Nonstop1h 20m

London Stansted

Wed 15/4

08:55-10:10

Nonstop1h 15m

£51

GlasgowLondon

GLA - STN

GLASTN

Glasgow Intl

Mon 27/4

06:55-08:15

Nonstop1h 20m

London Stansted

Mon 4/5

22:25-23:40

Nonstop1h 15m

£51

GlasgowLondon

GLA - LTN

GLALTN

Glasgow Intl

Fri 22/5

21:00-22:10

Nonstop1h 10m

London Luton

Mon 25/5

08:50-10:10

Nonstop1h 20m

£51

Flights are sorted by cheapest return flights first.

Deals found on 29/3

Showing 1-10 of 60 resultsSorted by cheapest first
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2
3
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6

Best time to book a flight from Glasgow to London

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

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

Use this chart to determine the optimal time to book a return flight from Glasgow to London. Price data was last updated on 13 March 2026.

To ensure you get the cheapest price possible for a flight from Glasgow to London, you should look to book at least 68 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Glasgow to London (average of £15). Flying from Glasgow to London in December is currently the most expensive (average of £34). 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 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 1 April 2026.

When flying from Glasgow 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 35% versus a flight in the morning.

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

Use this chart to determine the cheapest time to fly return from Glasgow to London. Price data was last updated on 28 March 2026.

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

Weekly flight availability from Glasgow to London

Explore weekly flight availability from Glasgow 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 1 April 2026.

The most flights from GG1 to LON are scheduled on a Wednesday (69 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (3 on average).

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

How often are flights from Glasgow to London delayed?

About 12% of weekly flights between Glasgow and London have experienced delays in the past year, with the average delay time being 100 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 10% 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 1 April 2026.
Check out reviews from past customers who have flown with easyJet,British Airways, andRyanair from Glasgow to London to help guide your decision. 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
1,889 reviews
Check prices

Overall

6.9

Food

5.9

Boarding

6.7

Comfort

6.7

Entertainment

5.5

Crew

7.6

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
1,889 reviews
easyJet
6.9
Okay
1,889 reviews
Check prices

Overall

6.9

Food

5.9

Boarding

6.7

Comfort

6.7

Entertainment

5.5

Crew

7.6

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
7,843 reviews
easyJet
6.9
Okay
1,889 reviews
Check prices

Overall

6.9

Food

5.9

Boarding

6.7

Comfort

6.7

Entertainment

5.5

Crew

7.6

Reviews

1 / 20
4.0
Okay

Matt,Sept 2025

JTR - LGW

Boarding was a disaster. They are Nazis with the bags.
Ryanair
6.4
Okay
easyJet
6.9
Okay
1,889 reviews
Check prices

Overall

6.9

Food

5.9

Boarding

6.7

Comfort

6.7

Entertainment

5.5

Crew

7.6

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 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 to London?

    Departing from Glasgow to London will take you 1h 20m. There are 334 mi between Glasgow and London. Generally, flights for this route are direct.

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

    According to our current data, easyJet (£18), Ryanair (£31), and British Airways (£48) offers the cheapest pricing from Glasgow to London. easyJet is 77% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The most popular flight routes from Glasgow to London are Glasgow Intl - London Heathrow, Glasgow Intl - London Gatwick and Glasgow Intl - London Stansted.

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

    The top 3 most reliable airlines when flying from Glasgow to London are Qatar Airways (93%), British Airways (92%) and Iberia (91%).

  • What are the cheapest flights from Glasgow to London?

    Looking for the cheapest flight from Glasgow to London? While on average our users pay £1,687, our data indicates the cheapest price to be £66. The most popular route (Glasgow Intl - London Heathrow), is priced around £89.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Glasgow 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 to London?

    Currently, September is the cheapest month in which you can book a flight from Glasgow to London (average of £15). Flying from Glasgow to London in December is currently the most expensive (average of £34). 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
Wembley
Croydon
Hounslow
Gatwick
Slough
Ilford
Luton
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Romford
Eastbourne
Bedford
Chelmsford
Ipswich
Southend-on-Sea

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Alternative routes for Glasgow to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Glasgow to London

Discover the top 6 airlines that operate flights from Glasgow 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 1 April 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£18Average£50FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£18Average£79FlexibilityNo cancel feeOn-time86%
Search easyJet flights
RyanairCheapest£44Average£57FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£48Average£145FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£165Average£250FlexibilityNo cancel feeOn-time75%
Search KLM flights
LoganairCheapest£167Average£206FlexibilityNo cancel feeOn-time79%
Search Loganair 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 to London?

Deals for Glasgow 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 to London?

Cheapflights simply makes it quick and affordable to book flights from Glasgow to London by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes, we can. To see specific flights from Glasgow 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 to London 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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