Cheap Flights from Glasgow to London Heathrow

Compare Glasgow to London Heathrow flight deals

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

Book the best London Heathrow fare with no extra fees

Flight deals from Glasgow to London Heathrow Airport

Looking for a cheap last-minute deal or the best return flight from Glasgow to London Heathrow Airport? If you want to travel next month, return fares start from R 2,101. Find the lowest prices on one-way and return tickets right here.

London.R 1,229 per passenger.Departing Tue, 28 Apr.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from Glasgow Prestwick on Tue, 28 Apr, arriving in London Heathrow.Price includes taxes and charges.From R 1,229, select.

London.R 1,334 per passenger.Departing Wed, 9 Dec.One-way flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Wed, 9 Dec, arriving in London Heathrow.Price includes taxes and charges.From R 1,334, select.

London.R 1,408 per passenger.Departing Tue, 12 May.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from Glasgow Intl on Tue, 12 May, arriving in London Heathrow.Price includes taxes and charges.From R 1,408, select.

London.R 1,416 per passenger.Departing Sat, 6 Jun.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from Glasgow Intl on Sat, 6 Jun, arriving in London Heathrow.Price includes taxes and charges.From R 1,416, select.

London.R 1,420 per passenger.Departing Tue, 13 Oct.One-way flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Tue, 13 Oct, arriving in London Heathrow.Price includes taxes and charges.From R 1,420, select.

London.R 1,433 per passenger.Departing Wed, 15 Jul.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from Glasgow Intl on Wed, 15 Jul, arriving in London Heathrow.Price includes taxes and charges.From R 1,433, select.

London.R 1,438 per passenger.Departing Wed, 11 Nov.One-way flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Wed, 11 Nov, arriving in London Heathrow.Price includes taxes and charges.From R 1,438, select.

London.R 1,460 per passenger.Departing Sun, 31 Jan.One-way flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Sun, 31 Jan, arriving in London Heathrow.Price includes taxes and charges.From R 1,460, select.

London.R 1,464 per passenger.Departing Thu, 24 Sep.One-way flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Thu, 24 Sep, arriving in London Heathrow.Price includes taxes and charges.From R 1,464, select.

London.R 1,464 per passenger.Departing Sun, 17 May.One-way flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Sun, 17 May, arriving in London Heathrow.Price includes taxes and charges.From R 1,464, select.

London.R 1,486 per passenger.Departing Tue, 11 Aug.One-way flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Tue, 11 Aug, arriving in London Heathrow.Price includes taxes and charges.From R 1,486, select.

London.R 1,497 per passenger.Departing Tue, 31 Mar.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from Glasgow Intl on Tue, 31 Mar, arriving in London Heathrow.Price includes taxes and charges.From R 1,497, select.

London.R 1,509 per passenger.Departing Tue, 2 Feb.One-way flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Tue, 2 Feb, arriving in London Heathrow.Price includes taxes and charges.From R 1,509, select.

London.R 1,510 per passenger.Departing Thu, 16 Jul.One-way flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Thu, 16 Jul, arriving in London Heathrow.Price includes taxes and charges.From R 1,510, select.

London.R 1,555 per passenger.Departing Wed, 1 Apr.One-way flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Wed, 1 Apr, arriving in London Heathrow.Price includes taxes and charges.From R 1,555, select.

London.R 1,578 per passenger.Departing Fri, 5 Jun.One-way flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Fri, 5 Jun, arriving in London Heathrow.Price includes taxes and charges.From R 1,578, select.

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 April.

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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 found	R 1,229
Cheapest month to fly	April
Average flight time	1 hr, 29 mins
Most popular airline	British Airways
Average flights per week	436

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

How much are return flights from Glasgow to London Heathrow?

The best price we found for a return flight from Glasgow to London Heathrow is R 2,101. 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.

How long does it take to fly from Glasgow to London Heathrow?

1 hour and 29 minutes is the average flight time from Glasgow to London Heathrow.

Which airlines fly direct from Glasgow to London Heathrow?

British Airways, Qatar Airways and American Airlines fly direct from Glasgow to London Heathrow.

How many flights are there a week from Glasgow to London Heathrow?

As of March 2026, there are 436 flights per week flying from Glasgow to London Heathrow.

When is the cheapest time to fly from Glasgow to London Heathrow?

The cheapest month to fly from Glasgow to London Heathrow is usually April.

Which upcoming date is cheapest to fly from Glasgow to London Heathrow Airport on?

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, 17 April 2026.

Can I get a direct flight from Glasgow to London Heathrow Airport?

Yes – the average flight time is 1 hour and 29 minutes.

How can I find the best flight deal to London Heathrow?

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.

When is the best time to book flights to London?

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.

Which is the cheapest airline to fly from Glasgow to London Heathrow with?

The cheapest airline that flies to London Heathrow is British Airways .

Travelling from Glasgow to London Heathrow Airport (LHR): What you need to know

Start your trip at Glasgow Airport (GLA), the main airport in Glasgow. Search for flights from Glasgow to London Heathrow Airport (LHR) that depart from this base.
Around 1 hour 30 minutes is how long you'll be travelling on a direct Glasgow to London Heathrow Airport flight.
Glasgow and London (where London Heathrow Airport is located) share the UTC+0 timezone. That means you won't have to adjust your watch when you land.
Glasgow Airport (GLA) to London Heathrow Airport (LHR) is the most popular route. There are 67 direct departures a week to choose from. If you have things to do before heading off, take the last flight with British Airways at 9:20pm. Choose the first GLA to LHR departure operated by British Airways at 5:50am if you'd rather get going earlier.
Give yourself enough time to catch your flight from Glasgow to LHR. As a rule of thumb, arrive two hours before international departures and an hour ahead for domestic flights.
Popular months like September or other peak seasons mean longer lines and possible delays. Stay ahead of the crowds by getting to the airport even earlier. Aim for at least four hours ahead of an international flight and two hours before domestic departures.

Airports in Glasgow

Glasgow Airport (GLA)

Reach your destination without the detour from Glasgow Airport (GLA). Nonstop flights from Glasgow to London Heathrow Airport (LHR) are available from here.
When departing from GLA, you can catch a direct flight from Glasgow to London Heathrow Airport with British Airways.
British Airways ranks first in bookings for flights from GLA to LHR.
With a dependable 86.16% of services arriving on schedule, British Airways ranks as the most on-time carrier flying this route.
GLA is around 13 kilometres from central Glasgow. If you're catching a taxi, ride-sharing or driving from the centre, it'll take 20 minutes or so to get there, depending on the traffic. If you're using public transport, expect the travel time to be around 30 minutes.
Catching an early flight from Glasgow to London Heathrow Airport? Avoid the mad dash to the terminal (and enjoy a few extra z's) by picking one of these stays near Glasgow Airport:
Glasgow Airport has a strong on-time performance, reducing your chances of a delayed flight. Departures from GLA make it to their destination as scheduled 81% of the time.

Glasgow Prestwick Airport (PIK)

You can reach PIK from central Glasgow in about 50 minutes by car (depending on traffic). The journey on public transport takes roughly 55 minutes to travel the 48 kilometres or so.
Get a head start on your holiday with an additional night away from home. Before your Glasgow to LHR flight, kick back in one of these hotels near Glasgow Prestwick Airport:
Flights from Glasgow Prestwick Airport have a strong track record for punctuality, with 83% of them landing within the expected time frame.

About London Heathrow Airport (LHR)

The last thing you want is a lengthy journey to your hotel if you're arriving on a late flight from Glasgow to London Heathrow Airport. Make yourself comfy at one of these accommodation options near LHR instead:
Lock in the best rate by booking your vehicle around one week before your Glasgow to London Heathrow Airport flight.

Getting from London Heathrow Airport (LHR) to central London

Central London is around 24 kilometres from London Heathrow Airport and takes about 45 minutes to reach by car. See what your options are for getting into town, whether that's with a car hire, taxi or ride-share.
It typically takes 25 minutes if you're travelling by public transport.

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 R 1,229. For a return flight on this route, the best price is R 2,101. Depending on how early you book and the availability, these fares may change.
To snag cheap flights from Glasgow to LHR, book your plane ticket six months before your departure date.
November is when you're most likely to land a good deal on a Glasgow to London Heathrow Airport ticket. If you want to travel during a different time of year, the 'Whole month' tool will give you the lowest prices for each month.
Be the first to know about deals for plane tickets from Glasgow to LHR by setting up a Price Alert. We'll send you an email or push notification on the app when prices go down.
Nail down a great price on a flight from Glasgow to London Heathrow Airport with the help of the filters. Choose your preferred departure and arrival times, airlines and number of stops. You can also sort your results by 'Best,' 'Cheapest' or 'Fastest.'

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

It's time to decide when to book your flight from Glasgow to London Heathrow Airport (LHR). July is the busiest month to visit London. If you like things a bit more low-key, go in January.
Lock in a Glasgow to LHR plane ticket departing in July if you want to experience the city during its warmest month. Expect temperatures in London to range from 11ºC (52ºF) to 26ºC (79ºF).
For cooler conditions, look for a cheap ticket from Glasgow to London Heathrow Airport in January when temperatures are between 0ºC (32ºF) and 9ºC (48ºF).

More about London

Start your London trip off on the right foot by choosing the ideal place to stay. After booking your flight from Glasgow to London Heathrow Airport, check out our selection of accommodation options including:
The British Museum and Westminster Abbey are just the start of the big attractions to put on your London travel itinerary. Keep the momentum going by heading to Big Ben.

Explore more of the United Kingdom

You've seen London, now it's time to discover other corners of the United Kingdom. Journey about 257 kilometres northwest to Manchester to check off its top attractions. From Manchester United Museum & Stadium Tour to The Homes of Football and Museum of Science and Industry, there's plenty to keep you on the go.
If there's time to check out another corner of the United Kingdom, consider Birmingham, about 153 kilometres northwest of London. Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience are key reasons to visit.