Question 1

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

Accepted Answer

On average, the least expensive day to fly to London Heathrow Airport from Glasgow is on a Friday. momondo users have found tickets for Friday departures for as low as £547. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Sunday is £604.

Question 2

What is the cheapest Glasgow to London Heathrow flight route?

Accepted Answer

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

Question 3

How often are flights from Glasgow to London delayed?

Accepted Answer

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.

Question 4

Which airlines fly to London Heathrow Airport?

Accepted Answer

British Airways, easyJet and KLM are the top three most popular airlines that fly to London Heathrow Airport from Glasgow according to our data. British Airways is the first choice among our users, with 96% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 4 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Question 5

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

Accepted Answer

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

Question 6

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

Accepted Answer

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 to London Heathrow Airport in the evening for as low as £419. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £624 on average. Flights to London Heathrow Airport from Glasgow in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Question 7

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

Accepted Answer

As of January 2026, there are 16 flights per day flying from Glasgow to London Heathrow Airport. The most common time of day flights depart is 14:00, with 48% of flights taking off at midday.

Question 8

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

Accepted Answer

116 flights are operational weekly from Glasgow to London Heathrow Airport as of January 2026. The most popular departure day for this route is Sat, with 35% of flights per week taking off on this day.

Question 9

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

Accepted Answer

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

Question 10

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

Accepted Answer

In general, January is the cheapest month to fly from Glasgow to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £106. The month of March is another great option to travel to London Heathrow Airport, with average flight prices from Glasgow averaging around £108.

Question 11

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

Accepted Answer

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

Question 12

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

Accepted Answer

You are more likely to see cheaper flights to London Heathrow Airport from Glasgow when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £120 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Glasgow for as low as £97 on momondo.

Question 13

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

Accepted Answer

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

Question 14

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

Accepted Answer

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

Question 15

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

Accepted Answer

Prices for flights from Glasgow to London Heathrow Airport refresh daily.

Question 16

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

Accepted Answer

As of January 2026, there are 3 operators available to choose from for flights from Glasgow to London Heathrow Airport.

Question 17

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

Accepted Answer

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Glasgow to London Heathrow Airport.

Question 18

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

Accepted Answer

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.

Fastest flight time	1h 20m
Direct flights	Every day

Airline	Rating	Free Cancellation	Price
easyJet	PriceFrom £30	Free Cancellation	Rating 6.9 1,857 reviews	Search easyJet flights
British Airways	PriceFrom £73	Free Cancellation	Rating 6.7 7,644 reviews	Search British Airways flights
KLM	PriceFrom £162	Free Cancellation	Rating 7.7 1,434 reviews	Search KLM flights
Loganair	PriceFrom £164	Free Cancellation	Rating 0.0 0 reviews	Search Loganair flights

Cheap flights from Glasgow to London from £59

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How to get the cheapest flight ticket from Glasgow to 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?

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

What is the cheapest Glasgow to London Heathrow flight route?

Fly from Glasgow Intl to London Heathrow for the best Glasgow - 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 to London Heathrow flights?

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

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

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

Which airlines fly to London Heathrow Airport?

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 departing 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 that experiences the fewest 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 fewest 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 to London Heathrow Airport on average per day?

As of January 2026, there are 16 flights per day flying from Glasgow to London Heathrow Airport. The most common time of day flights depart is 14:00, with 48% of flights taking off at midday.

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

116 flights are operational weekly from Glasgow to London Heathrow Airport as of January 2026. The most popular departure day for this route is Sat, with 35% of flights per week taking off on this day.

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How far is Glasgow to London Heathrow by plane?

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

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

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

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

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