Cheap Flights from Glasgow to London Heathrow

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Compare Glasgow to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

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Flight deals from Glasgow to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Glasgow to London Heathrow? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Glasgow to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Glasgow to London Heathrow flights are currently cheapest in October.

Direct flights from Glasgow to London Heathrow

Glasgow to London Heathrow: Alternative routes

Compare routes from Glasgow to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Glasgow to London: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 2,183
Cheapest month to flyOctober
Average flight time1 hr, 31 mins
Most popular airlineBritish Airways
Average flights per week605

Finding cheap flights from Glasgow to London Heathrow: Frequently asked questions

The best price we found for a return flight from Glasgow to London Heathrow is ج.م.‏ 4,157. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 31 minutes is the average flight time from Glasgow to London Heathrow.
British Airways, Qatar Airways and American Airlines fly direct from Glasgow to London Heathrow.
As of March 2025, there are 605 flights per week flying from Glasgow to London Heathrow.
The cheapest month to fly from Glasgow to London Heathrow is usually March 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Glasgow to London Heathrow Airport on Friday, 21 November 2025.
Yes – the average flight time is 1 hour and 31 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to London Heathrow is British Airways .

Flying from Glasgow to London Heathrow Airport (LHR): what you need to know

  • Glasgow's main airport is Glasgow International Airport (GLA). Check out your departure options from this base when searching for flights from Glasgow to London Heathrow Airport (LHR).

  • Expect to be in the air for 1 hour 27 minutes. That's the average duration of a direct flight from Glasgow to London Heathrow Airport.

  • London Heathrow Airport is located in London. The city's timezone is UTC+0, which is the same as Glasgow.

  • Glasgow International Airport (GLA) to London Heathrow Airport (LHR) is the most popular route. There are 338 direct weekly flights to choose from. If you prefer starting your day later, hop on the last flight with British Airways at 20:30. Choose the first GLA to LHR departure operated by British Airways at 06:00 if you want to get going earlier.

  • Your flight from Glasgow to LHR won't wait if you're late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • Popular months like June or other peak periods mean longer queues and potential delays. Get a head start by getting to the airport even earlier. Plan for at least four hours ahead of an international flight and two hours before domestic departures.

Airports in Glasgow

Glasgow International Airport (GLA)

  • Fly without interruptions from Glasgow International Airport (GLA). Direct flights from Glasgow to London Heathrow Airport (LHR) operate from here.

  • British Airways is a well-known carrier that offers direct flights from Glasgow to London Heathrow Airport jetting out of GLA.

  • From the centre of Glasgow, GLA is around 14 kilometres away. Use navigation apps or check the official airport website to find the best way to arrive at the terminal.

  • Looking for a convenient hotel near Glasgow International Airport? If you're catching an early flight from Glasgow to London Heathrow Airport, these stays will have you moments from your departure lounge:

Glasgow Prestwick Airport (PIK)

  • Planning to leave from Glasgow Prestwick Airport (PIK)? You can book a direct flight from Glasgow to London Heathrow Airport (LHR) departing from this busy hub.

  • British Airways offers direct flights from Glasgow to LHR departing from PIK. Book your favourite window (or aisle) seat and reach your destination in a single hop.

  • With public transport, you can travel from central Glasgow to PIK in around 53 minutes. The terminal is roughly 48 kilometres away, and making the journey by car will take approximately 38 minutes.

  • Want to spoil yourself with an extra night away before your flight from Glasgow to LHR? Kick back in a hotel near Glasgow Prestwick Airport before your holiday officially starts. Here's where you can stay:

About London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • London Heathrow Airport to the centre of London takes around 57 minutes by car. It's approximately 31 kilometres away. See what options are available, such as car rentals, cabs or ride-sharing services.

  • Travelling by public transport will take you roughly 1 hour and 1 minute.

How to find the cheapest flights from Glasgow to London Heathrow Airport (LHR)

  • The lowest price we've found for a one-way ticket from Glasgow to London Heathrow Airport is ج.م.‏ 2,203. The cheapest price for a return flight is ج.م.‏ 4,157. Keep in mind fares can change due to availability at the time of booking.

  • Book 2 months before you want to fly. After crunching the numbers on our calendar, this is how far you'll want to book ahead to secure cheap tickets from Glasgow to LHR.

  • November is the cheapest month for tickets from Glasgow to London Heathrow Airport. If you'd like to travel at a different time of year, use the 'Whole month' search feature to see the lowest prices for every month.

  • Set up a Price Alert and keep an eye on changes on this route through email or push notifications. We'll let you know when prices drop. Timing matters when searching for cheap flight tickets from Glasgow to LHR.

  • Tailor your trip with filters. Choose your preferred arrival and departure times, airlines and total journey duration. You can also sort your results by 'Fastest,' 'Cheapest' or 'Best' flights from Glasgow to London Heathrow Airport.

The best time to fly from Glasgow to London Heathrow Airport (LHR)

  • July is the most popular month to catch a flight from Glasgow to London Heathrow Airport while February is the quietest. To work out the best time to go to London, consider the pace you prefer to travel at.

  • The warmest month in London is July, with temperatures ranging between 11ºC and 26ºC. Book your flights from Glasgow to LHR in this month if this is the type of weather you enjoy.

  • If you like travelling in cooler conditions, look for a cheap flight from Glasgow to London Heathrow Airport in January when temperatures average between 0ºC and 9ºC.

More about London

Complete your London trip with a car rental

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Prices shown on this page are estimated lowest prices only. Found in the last 45 days.