118 € Cheap Flights from Glasgow Intl to London Heathrow

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Travellers and cabin class, 1 Adult, Economy

Compare Glasgow Intl 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

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Flight deals from Glasgow Intl to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Glasgow Intl Airport to London Heathrow Airport? If you want to travel next month, return fares start from 122 €. Find the lowest prices on one-way and return tickets right here.

London.118 € per passenger.Departing Fri, 13 Nov, returning Sun, 15 Nov.Return flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Fri, 13 Nov, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Sun, 15 Nov, arriving in Glasgow Intl.Price includes taxes and charges.From 118 €, select.

London.118 € per passenger.Departing Fri, 30 Oct, returning Sun, 1 Nov.Return flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Fri, 30 Oct, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Sun, 1 Nov, arriving in Glasgow Intl.Price includes taxes and charges.From 118 €, select.

London.121 € per passenger.Departing Wed, 11 Nov, returning Tue, 8 Dec.Return flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Wed, 11 Nov, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Tue, 8 Dec, arriving in Glasgow Intl.Price includes taxes and charges.From 121 €, select.

London.121 € per passenger.Departing Wed, 3 Feb, returning Mon, 8 Feb.Return flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Wed, 3 Feb, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Mon, 8 Feb, arriving in Glasgow Intl.Price includes taxes and charges.From 121 €, select.

London.121 € per passenger.Departing Tue, 12 Jan, returning Fri, 12 Mar.Return flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Tue, 12 Jan, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Fri, 12 Mar, arriving in Glasgow Intl.Price includes taxes and charges.From 121 €, select.

London.121 € per passenger.Departing Wed, 6 Jan, returning Sun, 10 Jan.Return flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Wed, 6 Jan, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Sun, 10 Jan, arriving in Glasgow Intl.Price includes taxes and charges.From 121 €, select.

London.121 € per passenger.Departing Mon, 18 Jan, returning Tue, 2 Feb.Return flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Mon, 18 Jan, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Tue, 2 Feb, arriving in Glasgow Intl.Price includes taxes and charges.From 121 €, select.

London.121 € per passenger.Departing Sat, 12 Dec, returning Tue, 5 Jan.Return flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Sat, 12 Dec, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Tue, 5 Jan, arriving in Glasgow Intl.Price includes taxes and charges.From 121 €, select.

London.121 € per passenger.Departing Wed, 24 Mar, returning Mon, 29 Mar.Return flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Wed, 24 Mar, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Mon, 29 Mar, arriving in Glasgow Intl.Price includes taxes and charges.From 121 €, select.

London.121 € per passenger.Departing Fri, 26 Feb, returning Mon, 1 Mar.Return flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Fri, 26 Feb, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Mon, 1 Mar, arriving in Glasgow Intl.Price includes taxes and charges.From 121 €, select.

London.121 € per passenger.Departing Wed, 2 Dec, returning Wed, 17 Mar.Return flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Wed, 2 Dec, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Wed, 17 Mar, arriving in Glasgow Intl.Price includes taxes and charges.From 121 €, select.

London.121 € per passenger.Departing Wed, 9 Dec, returning Sun, 13 Dec.Return flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Wed, 9 Dec, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Sun, 13 Dec, arriving in Glasgow Intl.Price includes taxes and charges.From 121 €, select.

London.122 € per passenger.Departing Wed, 24 Mar, returning Wed, 7 Apr.Return flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Wed, 24 Mar, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Wed, 7 Apr, arriving in Glasgow Intl.Price includes taxes and charges.From 122 €, select.

London.122 € per passenger.Departing Fri, 23 Oct, returning Sun, 13 Dec.Return flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Fri, 23 Oct, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Sun, 13 Dec, arriving in Glasgow Intl.Price includes taxes and charges.From 122 €, select.

London.122 € per passenger.Departing Wed, 14 Oct, returning Mon, 19 Oct.Return flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Wed, 14 Oct, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Mon, 19 Oct, arriving in Glasgow Intl.Price includes taxes and charges.From 122 €, select.

London.123 € per passenger.Departing Wed, 7 Oct, returning Sun, 10 Jan.Return flight with British Airways.Outbound direct flight with British Airways departs from Glasgow Intl on Wed, 7 Oct, arriving in London Heathrow.Inbound direct flight with British Airways departs from London Heathrow on Sun, 10 Jan, arriving in Glasgow Intl.Price includes taxes and charges.From 123 €, select.

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 November.

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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	118 €
Cheapest month to fly	October
Average flight time	1 hr, 29 mins
Most popular airline	British Airways
Average flights per week	402

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

How much are return flights from Glasgow Intl to London Heathrow?

The best price we found for a return flight from Glasgow Intl to London Heathrow is 118 €. 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 Intl to London Heathrow?

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

Which airlines fly direct from Glasgow Intl to London Heathrow?

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

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

As of September 2026, there are 402 flights per week flying from Glasgow Intl to London Heathrow.

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

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

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

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 Friday, 30 October 2026.

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

Currently, British Airways offers the cheapest flight tickets to London Heathrow.

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

The average length of a direct flight from Glasgow Intl Airport to London Heathrow Airport is 1 hour 30 minutes.
Glasgow and London are both in the UTC+0 timezone. That means there's no time difference to adjust for.
Flights from GLA to LHR start from 05:50 — the earliest with British Airways. The latest departure is at 21:20 with British Airways. In total, you can take your pick of 68 weekly Glasgow Intl Airport to London Heathrow Airport flights.
Give yourself enough time to catch your GLA to LHR flight. As a rule of thumb, arrive two hours before international departures and an hour ahead for domestic flights.
During popular months such as September, it's best to get to the airport even earlier. Plan to arrive two hours before domestic departures and four hours ahead of international flights whenever you're travelling during peak periods in general.
British Airways has direct flights from Glasgow Intl Airport to London Heathrow Airport. Book with this popular carrier, then get ready to discover the sights in London — and maybe even more of the United Kingdom if time allows.
The airline most travellers prefer to fly with on this route is British Airways.
British Airways stands out as the most punctual carrier for GLA to LHR flights, with 86.16% of services landing as scheduled.
If you'd like to split up your journey, simply uncheck 'Direct flights only' when searching for your ticket from Glasgow Intl Airport to London Heathrow Airport. These are the top stopovers between GLA and LHR:
- Amsterdam Schiphol Airport
- Dublin Airport
- Belfast City Airport

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

Currently, 66 € is the cheapest price we've seen for a one-way Glasgow Intl Airport to London Heathrow Airport flight. The best price for a return ticket is 118 €. Remember that fares may change due to availability at the time of booking.
To get cheap tickets from GLA to LHR, book your journey six months ahead of your departure date.
November is the cheapest month for flights from Glasgow Intl Airport to London Heathrow Airport. If you're looking to travel at a different time of year, the 'Whole month' tool will give you the lowest airfares across every month.
Landing cheap flights from GLA to LHR is easy with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as a new deal comes up.
Tailor your trip using filters. Choose your preferred arrival and departure times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Cheapest' or 'Best' flights from Glasgow Intl Airport to London Heathrow Airport.

Handy information about Glasgow Intl Airport (GLA)

81% of flights departing from Glasgow Intl Airport arrive at their destination on time. Given its strong performance rating, you're unlikely to be delayed when taking off from GLA.
Glasgow Intl Airport is around 13 kilometres from central Glasgow. If you're ride-sharing, catching a taxi or driving from the centre, it'll take 20 minutes or so to arrive, depending on the traffic.
You can expect a journey time of roughly 30 minutes on public transport.
Searching for a convenient hotel near GLA? If you're catching an early flight from Glasgow Intl Airport to London Heathrow Airport, these accommodation options will put you moments from your departure lounge:

Arriving at London Heathrow Airport (LHR)

The last thing you need is a long journey to your hotel if you're landing late on a Glasgow Intl Airport to London Heathrow Airport flight. Book one of these accommodation options near LHR instead:
Go wherever you want, whenever you want with a London Heathrow Airport rental car. Book your wheels from Surprice, U-Save or Green Motion and experience more of London and beyond.
Booking your ride from London Heathrow Airport about one week in advance gives you the best chance of locking in a great deal.

When to fly to London Heathrow Airport (LHR)

July is the busiest month for flights from Glasgow Intl Airport to London Heathrow Airport. To escape the crowds, travel to London in March.
Lock in your flight from Glasgow Intl Airport to London Heathrow Airport for July if you want to explore London during its warmest month. Expect temperatures of between 11ºC (52ºF) and 26ºC (79ºF).
If you want to travel in cooler conditions, search for a cheap ticket from GLA to LHR in January. Temperatures average between 0ºC (32ºF) and 9ºC (48ºF) then.

Explore more of the United Kingdom

London has plenty to offer, but there are so many other corners of the United Kingdom you'll want to see. Around 257 kilometres north-west of London, a visit to Manchester will keep your itinerary packed. Start with leading sights like Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.
If you want to check out another major destination in the United Kingdom, head for Birmingham, roughly 161 kilometres north-west of London. Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience are key highlights.