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Cheap flights from London Heathrow Airport to Glasgow Intl Airport from £56

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — GLA
20 Aug — 27 Aug1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Glasgow Intl are usually found in January or November, booked 87 days in advance, depart on a Tuesday or Saturday and return on a Friday

Cheap flight deals from Heathrow to Glasgow Intl

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Glasgow Intl (GLA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 August 2025.

Round-trip from

£86

One-way from

£56

Popular in

June

Cheapest in

January

Average price

£123

Good round-trip deal

£107 or less

Good one-way deal

£62 or less
British Airways
  • British Airways
  • 31/10-16/11
  • Nonstop
  • 3h 00m total
  • London to Glasgow
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British Airways
  • British Airways
  • 25/8
  • Nonstop
  • 1h 30m total
  • London to Glasgow
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£13 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from London Heathrow to Glasgow Intl.
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Price to beat on a one-way flight from London Heathrow to Glasgow Intl.
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Find flight deals from Heathrow to Glasgow Intl

Cheapest flights from Heathrow to Glasgow Intl
Explore the most affordable flight options available from Heathrow to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 August 2025.

Fri 31/1006:25LHR - GLA
Nonstop1h 25mBritish Airways
Sun 16/1105:55GLA - LHR
Nonstop1h 35mBritish Airways
Deal found 14/8£86
Fri 7/1106:25LHR - GLA
Nonstop1h 25mBritish Airways
Sun 9/1106:35GLA - LHR
Nonstop1h 35mBritish Airways
Deal found 14/8£88
Mon 18/806:30LHR - GLA
Nonstop1h 25mBritish Airways
Tue 11/1112:45GLA - LHR
Nonstop1h 30mBritish Airways
Deal found 13/8£91
Wed 27/807:10LHR - GLA
Nonstop1h 25mBritish Airways
Wed 3/920:30GLA - LHR
Nonstop1h 20mBritish Airways
Deal found 13/8£91
Fri 21/1121:10LHR - GLA
Nonstop1h 30mBritish Airways
Tue 2/1217:45GLA - LHR
Nonstop1h 20mBritish Airways
Deal found 14/8£92
Fri 29/820:55LHR - GLA
Nonstop1h 30mBritish Airways
Wed 3/920:30GLA - LHR
Nonstop1h 20mBritish Airways
Deal found 13/8£93
Fri 29/820:55LHR - GLA
Nonstop1h 30mBritish Airways
Tue 2/920:25GLA - LHR
Nonstop1h 20mBritish Airways
Deal found 13/8£94
Tue 26/818:15LHR - GLA
Nonstop1h 25mBritish Airways
Sat 6/921:15GLA - LHR
Nonstop1h 20mBritish Airways
Deal found 14/8£94
Mon 25/821:50LHR - GLA
Nonstop1h 25mBritish Airways
Tue 2/920:25GLA - LHR
Nonstop1h 20mBritish Airways
Deal found 14/8£95
Tue 9/922:00LHR - GLA
Nonstop1h 25mBritish Airways
Fri 2/118:40GLA - LHR
Nonstop1h 20mBritish Airways
Deal found 14/8£96

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Glasgow Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 August 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Glasgow Intl Airport that are best for you.

Fly from

Heathrow

Fly to

Glasgow Intl

Route

Depart

Return

Price

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Fri 31/10

06:25-07:50

Nonstop1h 25m

Glasgow Intl

Sun 16/11

05:55-07:30

Nonstop1h 35m

£86

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Sat 1/11

06:25-07:50

Nonstop1h 25m

Glasgow Intl

Sat 1/11

18:50-20:10

Nonstop1h 20m

£86

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Fri 7/11

06:25-07:50

Nonstop1h 25m

Glasgow Intl

Sun 9/11

05:55-07:30

Nonstop1h 35m

£88

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Fri 31/10

06:25-07:50

Nonstop1h 25m

Glasgow Intl

Sat 8/11

17:20-18:40

Nonstop1h 20m

£88

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Fri 5/12

06:25-07:50

Nonstop1h 25m

Glasgow Intl

Sun 7/12

05:55-07:30

Nonstop1h 35m

£89

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Thu 4/12

06:20-07:45

Nonstop1h 25m

Glasgow Intl

Sun 7/12

05:55-07:30

Nonstop1h 35m

£89

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Tue 2/9

06:15-07:40

Nonstop1h 25m

Glasgow Intl

Sat 13/9

21:15-22:35

Nonstop1h 20m

£91

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Fri 21/11

21:10-22:40

Nonstop1h 30m

Glasgow Intl

Tue 2/12

17:45-19:05

Nonstop1h 20m

£92

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Mon 1/9

06:30-07:55

Nonstop1h 25m

Glasgow Intl

Mon 15/9

20:50-22:10

Nonstop1h 20m

£93

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Wed 27/8

21:10-22:35

Nonstop1h 25m

£56

Flights are sorted by cheapest return flights first.

Deals found on 13/8

Showing 1-10 of 17 results
1
2

Best time to book a flight from Heathrow to Glasgow Intl

Have a flexible travel schedule? Discover the best time to fly to Glasgow Intl from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Glasgow Intl Airport

How far ahead should I book a flight from London Heathrow Airport to Glasgow Intl Airport?

Use this chart to determine the optimal time to book a return flight from Heathrow to Glasgow Intl. Price data was last updated on 8 August 2025.

The best time to book flights from London Heathrow Airport to Glasgow Intl Airport is 87 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London Heathrow Airport to Glasgow Intl Airport?

Currently, April is the cheapest month in which you can book a flight from London Heathrow Airport to Glasgow Intl Airport (average of £97). Flying from London Heathrow Airport to Glasgow Intl Airport in July is currently the most expensive (average of £119). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to GLA?

Find hourly flight availability from Heathrow to Glasgow Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 August 2025.

One of the essential ways to save on airfare from London Heathrow Airport to Glasgow Intl Airport is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the afternoon could potentially save you up to 15% on airfare.

What is the cheapest day to fly from London Heathrow Airport to Glasgow Intl Airport?

Use this chart to determine the cheapest time to fly return from Heathrow to Glasgow Intl. Price data was last updated on 10 August 2025.

Travellers seeking maximum savings on their London Heathrow Airport to Glasgow Intl Airport flight should consider departing on Wednesday at midday when fares are most often at their lowest. Sunday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost for a return flight from London Heathrow Airport to Glasgow Intl Airport?

Reviews of airlines servicing Glasgow Intl

Get insights into the airlines that provide service to Glasgow Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Glasgow Intl. Reviews last updated 15 August 2025.
See what other customers who have flown with easyJet and British Airways from London Heathrow Airport to Glasgow Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
easyJet
6.9
Okay
1,821 reviews
Check prices

Food

5.9

Crew

7.6

Boarding

6.7

Overall

6.9

Comfort

6.7

Entertainment

5.5

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
easyJet
6.9
Okay
1,821 reviews
easyJet
6.9
Okay
1,821 reviews
Check prices

Food

5.9

Crew

7.6

Boarding

6.7

Overall

6.9

Comfort

6.7

Entertainment

5.5

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
British Airways
6.7
Okay
7,267 reviews
easyJet
6.9
Okay
1,821 reviews
Check prices

Food

5.9

Crew

7.6

Boarding

6.7

Overall

6.9

Comfort

6.7

Entertainment

5.5

Reviews

1 / 20
6.0
Good

Kathleen P,Jun 2025

LGW - GLA

Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Glasgow Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from London Heathrow Airport to Glasgow Intl Airport round-trip?

    Flying on easyJet is currently your cheapest option to Glasgow Intl Airport, with prices starting at £41. Another option worth looking into is British Airways, starting at £70 return. easyJet is 65% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from London Heathrow Airport to Glasgow Intl Airport?

    No one likes to see their flight delayed. When booking a flight from London Heathrow Airport to Glasgow Intl Airport consider choosing China Southern (79%), Malaysia Airlines (77%) or Qatar Airways (72%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from London Heathrow Airport to Glasgow Intl Airport?

    The cheapest flight price from London Heathrow Airport to Glasgow Intl Airport is £58. On average you can expect to pay £195. The most popular route, (London Heathrow - Glasgow Intl), can usually be booked for £85.

  • Can I find deals for flights from Heathrow to Glasgow Intl that include hotel bookings?

    Yes. In addition to deals on Heathrow to Glasgow Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Glasgow Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Glasgow Intl.

  • Can I find deals for business class flights from Heathrow to Glasgow Intl?

    Yes. Cheapflights offers flight deals from Heathrow to Glasgow Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Glasgow Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from London Heathrow Airport to Glasgow Intl Airport (average of £97). Flying from London Heathrow Airport to Glasgow Intl Airport in July is currently the most expensive (average of £119). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Glasgow Intl Airport?

Book flights to Glasgow Intl Airport if you plan to visit one of these locations
Paisley
Dunoon
Largs
Renfrew
East Kilbride
Kilmarnock
Dumbarton
Clydebank
Arrochar
Inveraray
Rothesay
Ballachulish
Alexandria
Tarbert
Balloch

Browse thousands of different options on Cheapflights for your next trip

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Fly from Heathrow to Glasgow Intl on these airlines

Choose from the following airlines for your flight from Heathrow to Glasgow Intl. Flights are based on user searches made on Cheapflights and were last updated on 15 August 2025.
British Airways flights from London Heathrow to Glasgow Intl
easyJet flights from London Heathrow to Glasgow Intl

Top 2 airlines flying from Heathrow to Glasgow Intl

Discover the top 2 airlines that operate flights from Heathrow to Glasgow Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 August 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£41Average£73FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£70Average£117FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Glasgow Intl?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Glasgow Intl from Heathrow today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Glasgow Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Glasgow Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Heathrow to Glasgow Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to Glasgow Intl with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Glasgow Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Glasgow Intl from Heathrow today and book when prices fit your budget.

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