How far in advance should I book tickets for a flight with British Airways from Glasgow Intl Airport to London Heathrow Airport?

Generally, when trying to get a below-average price for your ticket, try to book around 15 days before departure. For the cheapest possible price, our data suggests booking 75 days before departure.

Is British Airways the cheapest airline to fly with from Glasgow Intl Airport to London Heathrow Airport?

With an average price of £149 return, British Airways is not the cheapest airline to fly from Glasgow Intl Airport to London Heathrow Airport with. Instead, for the lowest price, our data suggests flying with easyJet, where a return flight costs £117 on average.

Does British Airways fly direct to London Heathrow Airport from Glasgow Intl Airport?

Yes, British Airways does offer direct flights for the route, with around 18 flights per week.

What’s the cheapest day of the week to fly from Glasgow Intl Airport to London Heathrow Airport with British Airways?

On average, the cheapest day of the week to fly from Glasgow Intl Airport to London Heathrow Airport with British Airways is Tuesday, when prices are around £49. The most expensive day is generally Saturday, when the average price is around £64.

What’s the cheapest month to fly from Glasgow Intl Airport to London Heathrow Airport with British Airways?

The cheapest month for British Airways flights to London Heathrow Airport from Glasgow Intl Airport is generally November, where plane tickets cost £92 on average. If possible, try to avoid the most expensive months of May and June, when tickets cost £119 and £152 respectively.

£27 Cheap British Airways Flights from Glasgow Intl Airport to London Heathrow Airport

GLA - LHR

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Cheap British Airways Flight Deals from Glasgow Intl Airport to London Heathrow Airport

Here are some of the best deals found on KAYAK recently from British Airways for return flights from Glasgow Intl Airport to London Heathrow Airport that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Round-trip

One-way

Last minute

Direct

Recent return British Airways flight deals from Glasgow Intl Airport to London Heathrow Airport

KAYAK's recommended return flight British Airways deals departing in the coming months from Glasgow Intl Airport to London Heathrow Airport.

Discover the best prices for you by selecting your travel dates on KAYAK.

20:30 - 21:50GLA-LHR

1h 20mdirect

06:15 - 07:40LHR-GLA

1h 25mdirect

£69British Airways

Find Deal

Wed, 3 Sep - Tue, 9 Sep

20:30 - 21:50GLA-LHR

1h 20mdirect

20:55 - 22:20LHR-GLA

1h 25mdirect

£71British Airways

Find Deal

Wed, 1 Oct - Sat, 11 Oct

05:50 - 07:25GLA-LHR

1h 35mdirect

20:55 - 22:25LHR-GLA

1h 30mdirect

£77British Airways

Find Deal

Sat, 13 Sep - Mon, 15 Sep

19:25 - 20:45GLA-LHR

1h 20mdirect

21:55 - 23:20LHR-GLA

1h 25mdirect

£80British Airways

Find Deal

Thu, 2 Oct - Sat, 4 Oct

20:30 - 21:50GLA-LHR

1h 20mdirect

06:15 - 07:40LHR-GLA

1h 25mdirect

£81British Airways

Find Deal

Thu, 12 Jun - Tue, 17 Jun

05:50 - 07:25GLA-LHR

1h 35mdirect

20:55 - 22:25LHR-GLA

1h 30mdirect

£83British Airways

Find Deal

Fri, 30 May - Mon, 22 Sep

20:25 - 21:45GLA-LHR

1h 20mdirect

06:15 - 07:40LHR-GLA

1h 25mdirect

£84British Airways

Find Deal

Tue, 27 May - Tue, 3 Jun

20:25 - 21:45GLA-LHR

1h 20mdirect

21:50 - 23:15LHR-GLA

1h 25mdirect

£84British Airways

Find Deal

Fri, 4 Jul - Mon, 7 Jul

19:15 - 20:35GLA-LHR

1h 20mdirect

20:55 - 22:25LHR-GLA

1h 30mdirect

£86British Airways

Find Deal

Tue, 29 Jul - Fri, 1 Aug

20:30 - 21:50GLA-LHR

1h 20mdirect

20:55 - 22:25LHR-GLA

1h 30mdirect

£88British Airways

Find Deal

Thu, 5 Jun - Mon, 9 Jun

Useful Info

Low season	February
High season	July
Cheapest flight	£27
Average price round-trip	£596
Good deal round-trip	£449
Good deal one-way	£85

Best time to beat the crowds (3% less expensive on average)

Most popular time to fly (21% more expensive on average)

Flight from Glasgow Airport to London Heathrow Airport

(avg. price over the last 2 weeks)

or less

When to Book Flights with British Airways from Glasgow Intl Airport to London Heathrow Airport

Average price per month

Flight prices as travel date approaches

How far in advance should I book tickets for a flight with British Airways from Glasgow Intl Airport to London Heathrow Airport?
Generally, when trying to get a below-average price for your ticket, try to book around 15 days before departure. For the cheapest possible price, our data suggests booking 75 days before departure.
Is British Airways the cheapest airline to fly with from Glasgow Intl Airport to London Heathrow Airport?
With an average price of £149 return, British Airways is not the cheapest airline to fly from Glasgow Intl Airport to London Heathrow Airport with. Instead, for the lowest price, our data suggests flying with easyJet, where a return flight costs £117 on average.
What is the cheapest British Airways flight from Glasgow Intl Airport to London Heathrow Airport?
In the last 3 days, the lowest price for a flight with British Airways from Glasgow Intl Airport to London Heathrow Airport was £122 for a return flight and £58 for a one-way flight.
Does British Airways fly direct to London Heathrow Airport from Glasgow Intl Airport?
Yes, British Airways does offer direct flights for the route, with around 18 flights per week.
What’s the cheapest day of the week to fly from Glasgow Intl Airport to London Heathrow Airport with British Airways?
On average, the cheapest day of the week to fly from Glasgow Intl Airport to London Heathrow Airport with British Airways is Tuesday, when prices are around £49. The most expensive day is generally Saturday, when the average price is around £64.
What’s the cheapest month to fly from Glasgow Intl Airport to London Heathrow Airport with British Airways?
The cheapest month for British Airways flights to London Heathrow Airport from Glasgow Intl Airport is generally November, where plane tickets cost £92 on average. If possible, try to avoid the most expensive months of May and June, when tickets cost £119 and £152 respectively.

6.6

OkayBased on 6,835 verified guest reviews

7.6Crew

6.8Boarding

6.7Comfort

6.4Entertainment

6.3Food

Pros +

"The crew was exceptional, the service was great and the entertainment options were abundant." (in 251 reviews)

Cons -

I purchased business class food was uneatble cald sandwich. (in 155 reviews)
Window was dirty from someone touching it on a previous flight. (in 1265 reviews)
The airline could have kept middle seats open to instill more confidence in flying. (in 550 reviews)

Show reviews that mention

2.0 Poor

Verified traveller, Apr 2025

LHR-NBO

When i booked my flight, my ticket shows that i have 2 pieces of luggage allowance. Once i got into the check in, i was informed that i needed to pay extra for my two suitcases, and was put into a very precarious situation, I had to pay close to £200 for my two suitcases and these were not extra burgages, I felt extremely disappointed. In case i never had the kind of money, it meant that i would have missed my flight

8.0 Very Good

Mitra, Apr 2025

JFK-LHR

Freezing cold in the cabin.

6.0 Okay

Lorrie, Apr 2025

LHR-PDX

Boarding is a mess. They never check group # so lots of people crowding in. Comfortable seats this flight. I had an empty seat next to me, very convenient. Food was really not good, but I was starved. The pizza snack thing was horrible. Crew was grand. They really make it enjoyable.

6.0 Okay

Lorrie, Apr 2025

NAP-LHR

Boarding was delayed and we had to get on buses to plane so group # didn't matter. No food or drinks served gratis. Seats were small, knees smashed into the seat ahead, didn't recline. Crew was excellent though.

10.0 Wonderful

Margaret L, Apr 2025

EDI-LHR

All of our flights were on time

10.0 Wonderful

Peter, Apr 2025

LCY-PMI

Fast and functional

6.0 Okay

Michael, Apr 2025

ORD-IND

Too much long line at the TSA and Security. Prepare for long walk for baggage claim.

10.0 Wonderful

Michael, Apr 2025

LHR-ORD

Good

10.0 Wonderful

Simon, Apr 2025

LHR-MRS

Amazing

6.0 Okay

Verified traveller, Apr 2025

SEA-LHR

The flight from Seattle was delayed, which made me miss my connection to Florence. I was re-booked NINE HOURS LATER!!! That’s basically a vacation day lost. British Airways needs to partner with other airlines when possible to get a more realistic travel time, if delays occur. I realize there aren’t many flights to Florence from London, so I would book differently were I to return. The actual flight from Seattle was very comfortable and the crew was great, no faults there. I enjoy British Airways, this was an anomaly.

Everything you need to know for your flight from Glasgow Intl Airport to London Heathrow Airport

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GLA - LHR

£27 Find Cheap British Airways Flights from Glasgow Intl Airport to London Heathrow Airport

Search hundreds of travel sites at once for deals on British Airways flights from Glasgow Intl Airport to London Heathrow Airport

Cheap British Airways Flight Deals from Glasgow Intl Airport to London Heathrow Airport

Recent return British Airways flight deals from Glasgow Intl Airport to London Heathrow Airport

Recent one-way British Airways flight deals from Glasgow Intl Airport to London Heathrow Airport

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Recent direct British Airways flight deals from Glasgow Intl Airport to London Heathrow Airport

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When to Book Flights with British Airways from Glasgow Intl Airport to London Heathrow Airport

FAQs for flying to London Heathrow Airport with British Airways

How far in advance should I book tickets for a flight with British Airways from Glasgow Intl Airport to London Heathrow Airport?

Is British Airways the cheapest airline to fly with from Glasgow Intl Airport to London Heathrow Airport?

What is the cheapest British Airways flight from Glasgow Intl Airport to London Heathrow Airport?

Does British Airways fly direct to London Heathrow Airport from Glasgow Intl Airport?

What’s the cheapest day of the week to fly from Glasgow Intl Airport to London Heathrow Airport with British Airways?

What’s the cheapest month to fly from Glasgow Intl Airport to London Heathrow Airport with British Airways?

British Airways Customer Reviews

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Everything you need to know for your flight from Glasgow Intl Airport to London Heathrow Airport

Top British Airways flights

The most popular destinations for flights with British Airways according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Cabin class types available on flights to London Heathrow Airport

Cabin classes available on flights to Glasgow Intl Airport. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

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