Cheap Flights from Glasgow Intl to London Heathrow

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

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Find the cheapest month to fly from Glasgow Intl to London Heathrow

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

Direct flights from Glasgow Intl to London Heathrow

Glasgow Intl to London Heathrow: Alternative routes

Compare routes from Glasgow Intl 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£58
Cheapest month to flyMarch
Average flight time1 hr, 28 mins
Most popular airlineBritish Airways
Average flights per week456

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

The best price we found for a return flight from Glasgow Intl to London Heathrow is £58. 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 28 minutes is the average flight time from Glasgow Intl to London Heathrow.
British Airways, Qatar Airways and Iberia fly direct from Glasgow Intl to London Heathrow.
As of April 2024, there are 495 flights per week flying from Glasgow Intl to London Heathrow.
The cheapest month to fly from Glasgow Intl to London Heathrow is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Glasgow Intl Airport to London Heathrow Airport on Monday, 17 March 2025.
Yes – the average flight time is 1 hour and 28 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 Heathrow is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, British Airways offers the cheapest flight tickets to London Heathrow.

Flights from Glasgow to Heathrow

This information is correct as of September 2015

Airlines that fly from Glasgow to Heathrow

British Airways is the only airline offering flights from Glasgow to Heathrow. Still, this is Glasgow airport's busiest route. We recommend booking your flights well in advance to avoid disappointment.

Terminal Information – Departing

Glasgow Airport has one terminal. Free Wi-Fi is available for 30 minutes for every passenger. The departure lounge has plenty to keep you occupied, with a wide range of shops and restaurants. All of the airport favourite shops like Boots, WHSmith, and World Duty Free are there: as are some slightly more luxurious high street stores like Victoria's Secret. There's even a Celtic store, in case you need a last-minute football strip. Grab a quick sandwich in EAT or sit down for a slap up meal at Frankie & Benny's: there are 12 places to eat at the airport so you're never short on choice. If the kids are bored, take them to the soft-play area. If you fancy an extra bit of luxury you can book into the UpperDeck lounge.

Terminal Information – Arriving

British Airways flights from Glasgow usually arrive in Terminal 5, the flagship terminal which was opened in 2008. The Piccadilly Line (underground) and Heathrow Express both stop here. It costs £5.70* to reach central London on the tube, or £26.50* on the Express train (£21.50* if you book your ticket in advance). The Heathrow Express goes to Paddington station, and takes just over 15 minutes. By comparison, the tube takes about an hour. National Express and easyBus coaches are also available from the airport. There is a taxi rank outside the airport, and a number of car hire companies inside the terminal. If you're planning on driving yourself into London, remember to compare car hire prices with Skyscanner to find the best price.

Practical Information

You don't need a passport to fly from Glasgow to London, but you will need to show some form of photographic ID: your driving license is fine. Try to arrive at the airport at least 90 minutes before departure. We'd recommend arriving earlier if you have luggage to check in or if you're flying during a busy period (first thing in the morning or during school holidays, for example).

What to expect in London

Londoners are famously suspicious of Scottish bank notes. Avoid arguments by withdrawing your cash once you arrive at Heathrow. Prices in London are higher than in Glasgow. London is, on average, 4°C warmer. The weather is usually a lot better during the summer, so bring your sunglasses. If you travel to London a lot it's worth picking up an Oyster card: they costs £5* but save you time at the ticket machine and cap your daily spend on transport.

*Prices subject to change


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