Find Cheap Flights from Glasgow Intl to London Heathrow (GLA - LHR)

Search hundreds of travel sites at once for deals on flights to London Heathrow

Wed 21/2
Wed 28/2
Any month
Compare vs KAYAK |

Good to know

Low season: October
High season: January
Average price: £119
Good deal: £96
Best time to beat the crowds
3%
expected price decrease
Most popular time to fly
5%
expected price increase
(avg. price over the last 2 weeks)
or less (return)

When to Book Flights from Glasgow Intl to London Heathrow

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for £95 or less.
The cheapest flight from Glasgow Intl to London Heathrow was found, on average, 90 days before departure.
Book at least 3 weeks before departure in order to get a below-average price.
Morning departure is around 4% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Glasgow Intl to London Heathrow Flights

How long does a flight from Glasgow Intl to London Heathrow take?
An average non-stop flight takes 1h 15m, covering a distance of 345 miles.
How many flights are there between Glasgow Intl and London Heathrow?
There are 906 (non-stop) flights between Glasgow Intl and London Heathrow per week, averaging 141 per day.
Which airlines provide the cheapest flights from Glasgow Intl to London Heathrow?
In the past 3 days, the cheapest return tickets were found on British Airways (£73) and Multiple Airlines (£289)
Do I need a passport to fly between Glasgow Intl and London Heathrow?
No.
Which airlines fly most frequently between Glasgow Intl and London Heathrow?
Qatar Airways (30 times daily), British Airways (28 times daily), American Airlines (16 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly from Glasgow Intl to London Heathrow?
For Glasgow Intl to London Heathrow, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from London Heathrow back to Glasgow Intl, the best deals are generally found on Wednesday, with Friday being the most expensive.

Book cheap flights from Glasgow Intl to London Heathrow (return)

Airports
Origin
Glasgow
£73
only
£73
Destination
London
£73
only
£73
Thu, 24 May
GLA
LHR
1h 15m
Mon, 28 May
LHR
GLA
1h 25m
Trip: 5 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Good 6.0

I have to pay for water?????

GLA
LHR
Excellent 8.0

Usual efficient BA

N/a

GLA
LHR
Good 7.6

Boarding seemed simple, no zones were called except for priority, we just all boarded and it seemed to go quickly and smoothly. BA is all pay onboard for any food or drinks.

GLA
LHR
Excellent 10.0

everyone was very nice-thank you

GLA
LHR
Excellent 8.0

Left on Time

Food costs money and not even water is free.

Mon, 28 May
GLA
LHR
1h 20m
Mon, 4 Jun
LHR
GLA
1h 25m
Trip: 8 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Good 7.6

Boarding seemed simple, no zones were called except for priority, we just all boarded and it seemed to go quickly and smoothly. BA is all pay onboard for any food or drinks.

GLA
LHR
Excellent 8.0

On time

GLA
LHR
OK 5.2

Had to take an emergency trip to London. The cost of the ticket for an hour flight was outrageous. $900 US was highway robbery.

GLA
LHR
Good 6.5

The cost to check in a bag was 65 pounds. We are a family of 3 and so that was 195 pounds. It is unreasonable to charge that much to check in a bag and ridiculous for ticket pricing to not be clear about this.

GLA
LHR
Good 6.6

I got there. It was safe.

Entertainment system shut off.

Fri, 8 Jun
GLA
LHR
1h 35m
Tue, 12 Jun
LHR
GLA
1h 25m
Trip: 5 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Good 6.6

I got there. It was safe.

Entertainment system shut off.

GLA
LHR
Good 7.6

Boarding seemed simple, no zones were called except for priority, we just all boarded and it seemed to go quickly and smoothly. BA is all pay onboard for any food or drinks.

GLA
LHR
Excellent 10.0

everyone was very nice-thank you

GLA
LHR
Excellent 8.0

Left on Time

Food costs money and not even water is free.

GLA
LHR
Good 6.5

The cost to check in a bag was 65 pounds. We are a family of 3 and so that was 195 pounds. It is unreasonable to charge that much to check in a bag and ridiculous for ticket pricing to not be clear about this.

Tue, 19 Jun
GLA
LHR
1h 15m
Sat, 23 Jun
LHR
GLA
1h 25m
Trip: 5 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Excellent 10.0

Comfortable and on time. We didn't have any food or entertainment so can't rate for them.

GLA
LHR
Excellent 8.0

On time

GLA
LHR
Good 6.3

Crew, funny safety instructions with Gordon Ramsey

Delays

GLA
LHR
Excellent 10.0

everyone was very nice-thank you

GLA
LHR
OK 5.2

Had to take an emergency trip to London. The cost of the ticket for an hour flight was outrageous. $900 US was highway robbery.

Thu, 5 Jul
GLA
LHR
1h 15m
Mon, 9 Jul
LHR
GLA
1h 25m
Trip: 5 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Excellent 8.0

Left on Time

Food costs money and not even water is free.

GLA
LHR
Good 6.5

The cost to check in a bag was 65 pounds. We are a family of 3 and so that was 195 pounds. It is unreasonable to charge that much to check in a bag and ridiculous for ticket pricing to not be clear about this.

GLA
LHR
Excellent 10.0

Comfortable and on time. We didn't have any food or entertainment so can't rate for them.

GLA
LHR
Good 6.6

I got there. It was safe.

Entertainment system shut off.

GLA
LHR
Excellent 8.0

Usual efficient BA

N/a

Fri, 13 Jul
GLA
LHR
1h 35m
Mon, 16 Jul
LHR
GLA
1h 25m
Trip: 4 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Good 6.3

Crew, funny safety instructions with Gordon Ramsey

Delays

GLA
LHR
OK 4.0

After sitting on the tarmac (I understand the delay) for 2 hours there was no water available for another hour past takeoff. And then it was only available for purchase. Really, a cup of free water is asking too much?

GLA
LHR
Excellent 8.0

Usual efficient BA

N/a

GLA
LHR
OK 5.2

Had to take an emergency trip to London. The cost of the ticket for an hour flight was outrageous. $900 US was highway robbery.

GLA
LHR
Good 6.5

The cost to check in a bag was 65 pounds. We are a family of 3 and so that was 195 pounds. It is unreasonable to charge that much to check in a bag and ridiculous for ticket pricing to not be clear about this.

Fri, 3 Aug
GLA
LHR
1h 35m
Mon, 6 Aug
LHR
GLA
1h 25m
Trip: 4 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Good 6.6

I got there. It was safe.

Entertainment system shut off.

GLA
LHR
Excellent 10.0

everyone was very nice-thank you

GLA
LHR
OK 4.0

After sitting on the tarmac (I understand the delay) for 2 hours there was no water available for another hour past takeoff. And then it was only available for purchase. Really, a cup of free water is asking too much?

GLA
LHR
Excellent 8.0

Left on Time

Food costs money and not even water is free.

GLA
LHR
Good 6.5

The cost to check in a bag was 65 pounds. We are a family of 3 and so that was 195 pounds. It is unreasonable to charge that much to check in a bag and ridiculous for ticket pricing to not be clear about this.

Wed, 4 Jul
GLA
LHR
1h 15m
Sat, 7 Jul
LHR
GLA
1h 25m
Trip: 4 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Excellent 10.0

everyone was very nice-thank you

GLA
LHR
OK 5.2

Had to take an emergency trip to London. The cost of the ticket for an hour flight was outrageous. $900 US was highway robbery.

GLA
LHR
Good 7.6

Boarding seemed simple, no zones were called except for priority, we just all boarded and it seemed to go quickly and smoothly. BA is all pay onboard for any food or drinks.

GLA
LHR
Excellent 8.0

Usual efficient BA

N/a

GLA
LHR
Good 6.3

Crew, funny safety instructions with Gordon Ramsey

Delays

Sun, 26 Aug
GLA
LHR
4h 20m
Thu, 6 Sep
LHR
GLA
8h 35m
£289
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Mon, 23 Apr
GLA
LHR
1h 15m
Mon, 30 Apr
LHR
GLA
1h 25m
Trip: 8 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
OK 4.0

After sitting on the tarmac (I understand the delay) for 2 hours there was no water available for another hour past takeoff. And then it was only available for purchase. Really, a cup of free water is asking too much?

GLA
LHR
Good 6.3

Crew, funny safety instructions with Gordon Ramsey

Delays

GLA
LHR
Excellent 10.0

everyone was very nice-thank you

GLA
LHR
Good 6.0

I have to pay for water?????

GLA
LHR
Excellent 10.0

Comfortable and on time. We didn't have any food or entertainment so can't rate for them.

Sat, 19 May
GLA
LHR
1h 25m
Sun, 20 May
LHR
GLA
1h 25m
Trip: 2 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Good 6.6

I got there. It was safe.

Entertainment system shut off.

GLA
LHR
Good 6.3

Crew, funny safety instructions with Gordon Ramsey

Delays

GLA
LHR
Excellent 8.0

Left on Time

Food costs money and not even water is free.

GLA
LHR
Excellent 8.0

Usual efficient BA

N/a

GLA
LHR
Excellent 10.0

everyone was very nice-thank you

Fri, 9 Mar
GLA
LHR
1h 20m
Sun, 25 Mar
LHR
GLA
1h 25m
£103
Trip: 16 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Excellent 10.0

Comfortable and on time. We didn't have any food or entertainment so can't rate for them.

GLA
LHR
Good 6.5

The cost to check in a bag was 65 pounds. We are a family of 3 and so that was 195 pounds. It is unreasonable to charge that much to check in a bag and ridiculous for ticket pricing to not be clear about this.

GLA
LHR
Good 7.6

Boarding seemed simple, no zones were called except for priority, we just all boarded and it seemed to go quickly and smoothly. BA is all pay onboard for any food or drinks.

GLA
LHR
Excellent 8.0

On time

GLA
LHR
Good 6.0

I have to pay for water?????

Fri, 9 Mar
GLA
LHR
1h 35m
Fri, 16 Mar
LHR
GLA
1h 25m
£103
Trip: 7 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Excellent 8.0

Usual efficient BA

N/a

GLA
LHR
Good 6.0

I have to pay for water?????

GLA
LHR
Good 6.3

Crew, funny safety instructions with Gordon Ramsey

Delays

GLA
LHR
Good 6.5

The cost to check in a bag was 65 pounds. We are a family of 3 and so that was 195 pounds. It is unreasonable to charge that much to check in a bag and ridiculous for ticket pricing to not be clear about this.

GLA
LHR
Good 7.6

Boarding seemed simple, no zones were called except for priority, we just all boarded and it seemed to go quickly and smoothly. BA is all pay onboard for any food or drinks.

Tue, 13 Mar
GLA
LHR
1h 30m
Sat, 24 Mar
LHR
GLA
1h 25m
£104
Trip: 12 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Excellent 8.0

Left on Time

Food costs money and not even water is free.

GLA
LHR
OK 5.2

Had to take an emergency trip to London. The cost of the ticket for an hour flight was outrageous. $900 US was highway robbery.

GLA
LHR
Good 6.6

I got there. It was safe.

Entertainment system shut off.

GLA
LHR
Excellent 10.0

everyone was very nice-thank you

GLA
LHR
Excellent 8.0

On time

Mon, 26 Feb
GLA
LHR
1h 25m
Tue, 27 Mar
LHR
GLA
1h 25m
£108
Trip: 29 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Excellent 8.0

On time

GLA
LHR
OK 4.0

After sitting on the tarmac (I understand the delay) for 2 hours there was no water available for another hour past takeoff. And then it was only available for purchase. Really, a cup of free water is asking too much?

GLA
LHR
Excellent 8.0

Left on Time

Food costs money and not even water is free.

GLA
LHR
Good 6.0

I have to pay for water?????

GLA
LHR
Excellent 10.0

Comfortable and on time. We didn't have any food or entertainment so can't rate for them.

Thu, 23 Aug
GLA
LHR
1h 30m
Sat, 25 Aug
LHR
GLA
1h 25m
£118
Trip: 3 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Good 7.6

Boarding seemed simple, no zones were called except for priority, we just all boarded and it seemed to go quickly and smoothly. BA is all pay onboard for any food or drinks.

GLA
LHR
Excellent 8.0

Left on Time

Food costs money and not even water is free.

GLA
LHR
Excellent 8.0

On time

GLA
LHR
OK 4.0

After sitting on the tarmac (I understand the delay) for 2 hours there was no water available for another hour past takeoff. And then it was only available for purchase. Really, a cup of free water is asking too much?

GLA
LHR
OK 5.2

Had to take an emergency trip to London. The cost of the ticket for an hour flight was outrageous. $900 US was highway robbery.

Mon, 21 May
GLA
LHR
1h 20m
Wed, 23 May
LHR
GLA
1h 25m
£120
Trip: 3 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Excellent 8.0

Usual efficient BA

N/a

GLA
LHR
Good 7.6

Boarding seemed simple, no zones were called except for priority, we just all boarded and it seemed to go quickly and smoothly. BA is all pay onboard for any food or drinks.

GLA
LHR
Good 6.0

I have to pay for water?????

GLA
LHR
Good 6.6

I got there. It was safe.

Entertainment system shut off.

GLA
LHR
Excellent 10.0

everyone was very nice-thank you

Fri, 23 Feb
GLA
LHR
1h 30m
Sun, 25 Feb
LHR
GLA
1h 25m
£123
Trip: 3 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Excellent 10.0

Comfortable and on time. We didn't have any food or entertainment so can't rate for them.

GLA
LHR
Good 7.6

Boarding seemed simple, no zones were called except for priority, we just all boarded and it seemed to go quickly and smoothly. BA is all pay onboard for any food or drinks.

GLA
LHR
Excellent 8.0

Usual efficient BA

N/a

GLA
LHR
OK 4.0

After sitting on the tarmac (I understand the delay) for 2 hours there was no water available for another hour past takeoff. And then it was only available for purchase. Really, a cup of free water is asking too much?

GLA
LHR
Good 6.0

I have to pay for water?????

Fri, 23 Feb
GLA
LHR
1h 35m
Fri, 23 Mar
LHR
GLA
1h 25m
£128
Trip: 28 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 68 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
GLA
LHR
Good 6.6

I got there. It was safe.

Entertainment system shut off.

GLA
LHR
Excellent 8.0

Left on Time

Food costs money and not even water is free.

GLA
LHR
Good 6.3

Crew, funny safety instructions with Gordon Ramsey

Delays

GLA
LHR
Good 6.5

The cost to check in a bag was 65 pounds. We are a family of 3 and so that was 195 pounds. It is unreasonable to charge that much to check in a bag and ridiculous for ticket pricing to not be clear about this.

GLA
LHR
Good 6.0

I have to pay for water?????

Show more results
*
Prices are per person, are for e–tickets and include all taxes & fees in GBP.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller
At KAYAK we don’t set prices, so it’s not possible for us to guarantee what other companies are selling.

We aggregate tons of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we don't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car hires can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find on occasion that certain prices are no longer available.

More questions or if you have a bad price to report to us
Please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.