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

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

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

According to our data, British Airways have had the least number of delays on this route over the last 12 months; with about 12% of their flights experiencing any sort of delay.

How often are flights from Glasgow to London delayed?

Historically, on average around 12% of flights between Glasgow and London have experienced a delay on any given week. The average delay length over the past 12 months has been 98 minutes.

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

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

What is the cheapest airline that flies from Glasgow Intl to London Heathrow?

British Airways is the most popular carrier operating from Glasgow Intl to London Heathrow

How many operators does momondo search for flights from Glasgow Intl Airport to London Heathrow Airport?

As of December 2025, there is 1 operator available to choose from for flights from Glasgow Intl Airport to London Heathrow Airport.

How old do you have to be to fly from Glasgow Intl Airport to London Heathrow Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Glasgow Intl Airport to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$84 Cheap Flights from Glasgow Intl Airport to London Heathrow Airport in 2025/26

Q: How many flights depart from Glasgow Intl Airport to London Heathrow Airport on average per day?

As of December 2025, 21 flights take off from Glasgow Intl Airport and land in London Heathrow Airport each day. The most common flight departure time for this route is 12:00PM, with 46% of daily flights taking off at noon.

Q: What is the typical price of a round-trip flight between Glasgow Intl Airport and London Heathrow Airport?

Prices are currently low for flights on this route. Typical prices usually range from $128 to $213. The lowest price recently found on this route was $115.

Q: How many flights depart from Glasgow Intl Airport to London Heathrow Airport on average per week?

As of December 2025, there are 151 flights per week flying from Glasgow Intl Airport to London Heathrow Airport. The most common day of the week flights depart is Mon, with 30% of flights taking off on this day.

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Find the cheapest flights from Glasgow Intl Airport to London

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Enter your travel dates to find the best prices.

5:45 pm - 7:05 pm

GLA

LHR

1h 20mnonstop

6:20 am - 7:45 am

LHR

GLA

1h 25mnonstop

$115British Airways

Fri, Jan 23 - Thu, Jan 29

6:50 pm - 8:10 pm

GLA

LHR

1h 20mnonstop

6:25 am - 7:50 am

LHR

GLA

1h 25mnonstop

$119British Airways

Sat, Jan 24 - Wed, Jan 28

10:50 am - 12:25 pm

GLA

LHR

1h 35mnonstop

6:25 am - 7:50 am

LHR

GLA

1h 25mnonstop

$121British Airways

Tue, Jan 27 - Tue, Feb 3

6:50 pm - 8:10 pm

GLA

LHR

1h 20mnonstop

6:25 am - 7:50 am

LHR

GLA

1h 25mnonstop

$122British Airways

Sat, Jan 24 - Wed, Jan 28

1:45 pm - 3:15 pm

GLA

LHR

1h 30mnonstop

9:00 pm - 10:30 pm

LHR

GLA

1h 30mnonstop

$124British Airways

Thu, Jan 15 - Mon, Jan 19

5:00 pm - 6:20 pm

GLA

LHR

1h 20mnonstop

8:00 pm - 9:30 pm

LHR

GLA

1h 30mnonstop

$127British Airways

Wed, Jan 7 - Wed, Jan 21

11:40 am - 1:15 pm

GLA

LHR

1h 35mnonstop

6:25 am - 7:50 am

LHR

GLA

1h 25mnonstop

$130British Airways

Sun, Jan 25 - Fri, Feb 13

5:55 am - 7:30 am

GLA

LHR

1h 35mnonstop

8:05 am - 9:30 am

LHR

GLA

1h 25mnonstop

$137British Airways

Sun, Jan 4 - Fri, Jan 16

2:00 pm - 3:30 pm

GLA

LHR

1h 30mnonstop

6:55 am - 8:20 am

LHR

GLA

1h 25mnonstop

$138British Airways

Fri, Feb 13 - Sun, Feb 15

5:25 pm - 6:50 pm

GLA

LHR

1h 25mnonstop

6:15 am - 7:40 am

LHR

GLA

1h 25mnonstop

$140British Airways

Sat, May 2 - Tue, May 5

KLM flights from Glasgow Intl Airport to London Heathrow Airport

Our best KLM deals on Glasgow Intl Airport to London Heathrow Airport flight tickets

KLM

Jan 15

GLA6:05 amGlasgow Intl

10h 00m

1 stop

LHR4:05 pmLondon Heathrow

Jan 17

LHR8:40 amLondon Heathrow

7h 55m

1 stop

GLA4:35 pmGlasgow Intl

$234

Find similar

KLM

Jan 15

GLA6:05 amGlasgow Intl

4h 40m

1 stop

LHR10:45 amLondon Heathrow

Jan 17

LHR8:40 amLondon Heathrow

7h 55m

1 stop

GLA4:35 pmGlasgow Intl

$235

Find similar

KLM

Jan 12

GLA6:05 amGlasgow Intl

4h 40m

1 stop

LHR10:45 amLondon Heathrow

Jan 19

LHR5:50 pmLondon Heathrow

4h 20m

1 stop

GLA10:10 pmGlasgow Intl

$249

Find similar

British Airways flights from Glasgow Intl Airport to London Heathrow Airport

Our best British Airways deals on Glasgow Intl Airport to London Heathrow Airport flight tickets

British Airways

Jan 17

GLA12:45 pmGlasgow Intl

1h 30m

LHR2:15 pmLondon Heathrow

Jan 19

LHR3:10 pmLondon Heathrow

1h 30m

GLA4:40 pmGlasgow Intl

$112

Find similar

British Airways

Jan 23

GLA5:45 pmGlasgow Intl

1h 20m

LHR7:05 pmLondon Heathrow

Jan 29

LHR6:20 amLondon Heathrow

1h 25m

GLA7:45 amGlasgow Intl

$115

Find similar

British Airways

Jan 24

GLA6:50 pmGlasgow Intl

1h 20m

LHR8:10 pmLondon Heathrow

Jan 28

LHR6:25 amLondon Heathrow

1h 25m

GLA7:50 amGlasgow Intl

$119

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Glasgow Intl Airport to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Fri 1/23

5:45 pm-7:05 pm

Nonstop1h 20m

London Heathrow

Thu 1/29

6:20 am-7:45 am

Nonstop1h 25m

$115

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Sat 1/24

6:50 pm-8:10 pm

Nonstop1h 20m

London Heathrow

Wed 1/28

6:25 am-7:50 am

Nonstop1h 25m

$119

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Tue 1/27

10:50 am-12:25 pm

Nonstop1h 35m

London Heathrow

Tue 2/3

6:25 am-7:50 am

Nonstop1h 25m

$121

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Sat 1/24

6:50 pm-8:10 pm

Nonstop1h 20m

London Heathrow

Wed 1/28

6:25 am-7:50 am

Nonstop1h 25m

$122

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Thu 1/15

1:45 pm-3:15 pm

Nonstop1h 30m

London Heathrow

Mon 1/19

9:00 pm-10:30 pm

Nonstop1h 30m

$124

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Wed 1/7

5:00 pm-6:20 pm

Nonstop1h 20m

London Heathrow

Wed 1/21

8:00 pm-9:30 pm

Nonstop1h 30m

$127

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Sun 1/25

11:40 am-1:15 pm

Nonstop1h 35m

London Heathrow

Fri 2/13

6:25 am-7:50 am

Nonstop1h 25m

$130

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Sun 1/4

5:55 am-7:30 am

Nonstop1h 35m

London Heathrow

Fri 1/16

8:05 am-9:30 am

Nonstop1h 25m

$137

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Fri 2/13

2:00 pm-3:30 pm

Nonstop1h 30m

London Heathrow

Sun 2/15

6:55 am-8:20 am

Nonstop1h 25m

$138

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Sat 5/2

5:25 pm-6:50 pm

Nonstop1h 25m

London Heathrow

Tue 5/5

6:15 am-7:40 am

Nonstop1h 25m

$140

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Glasgow Intl Airport to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

What is the typical price of a round-trip flight between Glasgow Intl Airport and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

The month of January is, on average, the cheapest month to fly to London Heathrow Airport from Glasgow Intl Airport, with most prices found around $141. If you’re not able to fly to London Heathrow Airport in January, then March is your next best option. Flight prices from Glasgow Intl Airport to London Heathrow Airport during March average around $143.

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Friday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $749. The most expensive day to fly to London Heathrow Airport is Thursday, with ticket prices averaging around $885.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Glasgow Intl Airport to London Heathrow Airport in the evening for as low as $692. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $846.

What is the cheapest Glasgow Intl to London Heathrow flight route?

Fly from Glasgow Intl to London Heathrow for the best Glasgow Intl - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Glasgow Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $160 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Glasgow Intl Airport for as low as $126 on momondo.

What cabin class options are available on Glasgow Intl to London Heathrow flights?

There are 4 cabin classes available to choose from on Glasgow Intl to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Glasgow Intl Airport to London Heathrow Airport flight prices changed over time?

As of December 2025, prices for Glasgow Intl Airport to London Heathrow Airport flights are approximately 105% more expensive when compared to flights at the same time last year.

When to book flights from Glasgow Intl Airport to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Glasgow Intl Airport to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Glasgow Intl Airport to London Heathrow Airport (GLA to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Glasgow Intl Airport to London Heathrow Airport

Best Price Found	$345
Fastest flight time	1h 15m
Direct flights	Every day

The best one-way flight to London Heathrow Airport from Glasgow Intl Airport in the past 72 hours is $345. The best round-trip flight deal from Glasgow Intl Airport to London Heathrow Airport found on momondo in the last 72 hours is $692.

The fastest flight from Glasgow Intl Airport to London Heathrow Airport takes 1h 15m

Direct flights go from Glasgow Intl Airport to London Heathrow Airport every day.

Search flight deals

How far is Glasgow Intl to London Heathrow by plane?
Glasgow Intl and London Heathrow are 344.5 mi apart from one another. Typically, this will take 1h 15m by plane in normal conditions.
When did momondo last update prices for flights from Glasgow Intl Airport to London Heathrow Airport?
Prices for flights from Glasgow Intl Airport to London Heathrow Airport were last updated today.
How many operators does momondo search for flights from Glasgow Intl Airport to London Heathrow Airport?
As of December 2025, there is 1 operator available to choose from for flights from Glasgow Intl Airport to London Heathrow Airport.
How old do you have to be to fly from Glasgow Intl Airport to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Glasgow Intl Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Glasgow Intl Airport to London Heathrow Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Glasgow Intl Airport to London Heathrow Airport is Airbus A320-100/200 (32.32% of total bookings). The next most popular plane models are Airbus A319 (25.00%), Airbus A320neo (11.96%), and Airbus A321neo (8.25%).
What is the most popular airline from Glasgow Intl Airport to London Heathrow Airport?
Based on momondo bookings for flights between Glasgow Intl Airport and London Heathrow Airport, the leading airline is British Airways, making up 100% of the total bookings.

Best airlines flying from Glasgow Intl Airport to London Heathrow Airport

Compare and see reviews for airlines that fly from Glasgow Intl Airport to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $107	Free Cancellation	Rating 6.7 7,575 reviews		Search British Airways flights

British Airways Flights From Glasgow Intl Airport to London Heathrow Airport
Across 28 British Airways flights from Glasgow Intl Airport to London Heathrow Airport this week, the average price was $177, with the best British Airways deals starting from $107 round-trip. 7,575 users have rated British Airways on momondo, with an average score of 6.7/10.

Gatwick

Hounslow

Milton Keynes

Dover

Luton

Slough

Guildford

Hayes

Dartford

Stratford-upon-Avon

Crawley

Brentwood

Salisbury

Wembley

Watford

Ilford

Cobham

Folkestone

Romford

Richmond

Why use momondo?

Why should I use momondo to find a flight deal from Glasgow to London?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Glasgow to London. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Glasgow to London with flexible booking policies on momondo?

Flights from Glasgow to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Glasgow to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Glasgow.

I’m not ready to book a flight from Glasgow to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Glasgow and alert you when they change.

An easier way to manage your London Heathrow Airport trip

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Flights to London Luton Airportfrom $380

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Flights to Glasgow Intl Airportfrom $388

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Flights to Belfast City Airportfrom $534

Cheap flights from Glasgow Intl Airport to London from $87

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Glasgow Intl Airport to London departing on 2/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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KLM flights from Glasgow Intl Airport to London Heathrow Airport

Our best KLM deals on Glasgow Intl Airport to London Heathrow Airport flight tickets

British Airways flights from Glasgow Intl Airport to London Heathrow Airport

Our best British Airways deals on Glasgow Intl Airport to London Heathrow Airport flight tickets

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Use the filters below to find and compare flights from Glasgow Intl Airport to London Heathrow Airport that are best for you.

See travel insights to London from

How to get the cheapest flight ticket from Glasgow Intl Airport to London Heathrow Airport

What is the typical price of a round-trip flight between Glasgow Intl Airport and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Friday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $749. The most expensive day to fly to London Heathrow Airport is Thursday, with ticket prices averaging around $885.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

What is the cheapest Glasgow Intl to London Heathrow flight route?

Fly from Glasgow Intl to London Heathrow for the best Glasgow Intl - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

What cabin class options are available on Glasgow Intl to London Heathrow flights?

There are 4 cabin classes available to choose from on Glasgow Intl to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Glasgow Intl Airport to London Heathrow Airport flight prices changed over time?

As of December 2025, prices for Glasgow Intl Airport to London Heathrow Airport flights are approximately 105% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Glasgow Intl to London Heathrow?

British Airways is the most popular carrier operating from Glasgow Intl to London Heathrow

How often are flights from Glasgow to London delayed?

Historically, on average around 12% of flights between Glasgow and London have experienced a delay on any given week. The average delay length over the past 12 months has been 98 minutes.

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

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

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

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

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

According to our data, British Airways have had the least number of delays on this route over the last 12 months; with about 12% of their flights experiencing any sort of delay.

How many flights depart from Glasgow Intl Airport to London Heathrow Airport on average per day?

As of December 2025, 21 flights take off from Glasgow Intl Airport and land in London Heathrow Airport each day. The most common flight departure time for this route is 12:00PM, with 46% of daily flights taking off at noon.

How many flights depart from Glasgow Intl Airport to London Heathrow Airport on average per week?

As of December 2025, there are 151 flights per week flying from Glasgow Intl Airport to London Heathrow Airport. The most common day of the week flights depart is Mon, with 30% of flights taking off on this day.

When to book flights from Glasgow Intl Airport to London Heathrow Airport

Cheap Glasgow Intl Airport to London Heathrow Airport (GLA to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Glasgow Intl Airport to London Heathrow Airport

Best Price Found

Fastest flight time

Direct flights

How far is Glasgow Intl to London Heathrow by plane?

When did momondo last update prices for flights from Glasgow Intl Airport to London Heathrow Airport?

How many operators does momondo search for flights from Glasgow Intl Airport to London Heathrow Airport?

How old do you have to be to fly from Glasgow Intl Airport to London Heathrow Airport?

What documentation or ID do you need to fly to London Heathrow Airport?

What is the most popular plane model from Glasgow Intl Airport to London Heathrow Airport?

What is the most popular airline from Glasgow Intl Airport to London Heathrow Airport?

Best airlines flying from Glasgow Intl Airport to London Heathrow Airport

Compare and see reviews for airlines that fly from Glasgow Intl Airport to London Heathrow Airport with momondo

British Airways Flights From Glasgow Intl Airport to London Heathrow Airport

Traveling to a place near London?

Why use momondo?

Why should I use momondo to find a flight deal from Glasgow to London?

Can I find flights from Glasgow to London with flexible booking policies on momondo?

How can momondo help me find flights from Glasgow to London?

I’m not ready to book a flight from Glasgow to London right now. Can momondo alert me if prices change?

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo