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Cheap flights from London Heathrow Airport to Glasgow Intl Airport from $125

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 21/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — GLA
19 Oct — 26 Oct1
1 adult
1 adult, Economy

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 Friday or Tuesday and return on a Wednesday

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 19 September 2025.

Round-trip from

$179

One-way from

$131

Popular in

June

Cheapest in

January

Average price

$256

Good one-way deal

$155 or less
British Airways
  • British Airways
  • 26/10-26/10
  • Nonstop
  • 2h 45m total
  • London to Glasgow
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British Airways
  • British Airways
  • 15/12
  • Nonstop
  • 1h 30m total
  • London to Glasgow
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($55 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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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 19 September 2025.

Sun 26/1006:55LHR - GLA
Nonstop1h 25mBritish Airways
Sun 26/1020:15GLA - LHR
Nonstop1h 20mBritish Airways
Deal found 18/9$179
Fri 17/1006:25LHR - GLA
Nonstop1h 25mBritish Airways
Sun 19/1007:35GLA - LHR
Nonstop1h 35mBritish Airways
Deal found 17/9$186
Fri 21/1106:25LHR - GLA
Nonstop1h 25mBritish Airways
Mon 24/1109:45GLA - LHR
Nonstop1h 35mBritish Airways
Deal found 18/9$195
Sun 2/1109:20LHR - GLA
Nonstop1h 25mBritish Airways
Sun 9/1105:55GLA - LHR
Nonstop1h 35mBritish Airways
Deal found 18/9$202
Sat 8/1119:55LHR - GLA
Nonstop1h 30mBritish Airways
Wed 12/1119:05GLA - LHR
Nonstop1h 20mBritish Airways
Deal found 16/9$204
Thu 23/1021:50LHR - GLA
Nonstop1h 25mBritish Airways
Wed 5/1118:05GLA - LHR
Nonstop1h 20mBritish Airways
Deal found 19/9$205
Fri 24/1006:35LHR - GLA
Nonstop1h 25mBritish Airways
Fri 31/1021:05GLA - LHR
Nonstop1h 20mBritish Airways
Deal found 18/9$207
Thu 6/1106:20LHR - GLA
Nonstop1h 25mBritish Airways
Sun 9/1118:05GLA - LHR
Nonstop1h 20mBritish Airways
Deal found 17/9$208
Sat 20/1206:25LHR - GLA
Nonstop1h 25mBritish Airways
Sun 28/1205:55GLA - LHR
Nonstop1h 35mBritish Airways
Deal found 17/9$214
Wed 15/1007:10LHR - GLA
Nonstop1h 25mBritish Airways
Wed 22/1016:50GLA - LHR
Nonstop1h 25mBritish Airways
Deal found 18/9$216

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 647,157 searches. Data last updated 19 September 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 17/10

06:25-07:50

Nonstop1h 25m

Glasgow Intl

Sun 19/10

07:35-09:10

Nonstop1h 35m

$186

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Sun 2/11

13:25-14:55

Nonstop1h 30m

Glasgow Intl

Sun 9/11

09:20-10:55

Nonstop1h 35m

$207

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Wed 15/10

07:10-08:35

Nonstop1h 25m

Glasgow Intl

Wed 22/10

16:50-18:15

Nonstop1h 25m

$216

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Tue 30/12

06:25-07:50

Nonstop1h 25m

Glasgow Intl

Sun 4/1

05:55-07:30

Nonstop1h 35m

$216

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Sat 20/12

06:25-07:50

Nonstop1h 25m

Glasgow Intl

Sun 28/12

05:55-07:30

Nonstop1h 35m

$216

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Mon 9/3

18:55-20:25

Nonstop1h 30m

Glasgow Intl

Fri 13/3

18:40-20:00

Nonstop1h 20m

$219

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Sun 14/12

06:55-08:20

Nonstop1h 25m

Glasgow Intl

Sun 4/1

05:55-07:30

Nonstop1h 35m

$225

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Sat 21/2

06:25-07:50

Nonstop1h 25m

$125

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Mon 15/12

19:55-21:25

Nonstop1h 30m

$131

LondonGlasgow

LHR - GLA

LHRGLA

London Heathrow

Sun 30/11

06:55-08:20

Nonstop1h 25m

$133

Flights are sorted by cheapest return flights first.

Deals found on 18/9

Showing 1-10 of 18 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 12 September 2025.

Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Glasgow Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Glasgow Intl Airport (average of $1,350). Flying from London Heathrow Airport to Glasgow Intl Airport in December is currently the most expensive (average of $1,904). 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 19 September 2025.

It’s typically best to fly out from London Heathrow Airport to Glasgow Intl Airport in the evening. Doing so could potentially save you 45% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 19 September 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Glasgow Intl Airport, such as British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,373 reviews
Check prices

Crew

7.6

Overall

6.7

Boarding

6.9

Entertainment

6.4

Comfort

6.7

Food

6.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

LHR - FCO

The crew was wonderful. Service was great. The discomfort came from the passenger behind me kicking the seat.
British Airways
6.7
Okay
7,373 reviews
British Airways
6.7
Okay
7,373 reviews
Check prices

Crew

7.6

Overall

6.7

Boarding

6.9

Entertainment

6.4

Comfort

6.7

Food

6.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

LHR - FCO

The crew was wonderful. Service was great. The discomfort came from the passenger behind me kicking the seat.

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.

  • How long is the flight from London Heathrow Airport to Glasgow Intl Airport?

    There are many flights that can get you from London Heathrow Airport to Glasgow Intl Airport in 1h 25m. Fly via British Airways to get the fastest option. London Heathrow Airport and Glasgow Intl Airport are separated by a distance of 555 km. All flights are typically direct.

  • What is the cheapest airline to fly from London Heathrow Airport to Glasgow Intl Airport round-trip?

    Flying on British Airways is currently your cheapest option to Glasgow Intl Airport, with prices starting at $141. British Airways is currently priced 43% below the average price you’ll pay for this route.

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

    The top 3 most reliable airlines when flying from London Heathrow Airport to Glasgow Intl Airport are Malaysia Airlines (76%), Qatar Airways (70%) and British Airways (69%).

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

    On average you can expect to pay $265 for a flight from London Heathrow Airport to Glasgow Intl Airport. The cheapest flight overall is $147 while the most popular route, (London Heathrow - Glasgow Intl) is currently priced at $122.

  • 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Glasgow Intl Airport (average of $1,350). Flying from London Heathrow Airport to Glasgow Intl Airport in December is currently the most expensive (average of $1,904). 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
Clydebank
Alexandria

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Heathrow to Glasgow Intl

Discover the top airline 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 647,157 searches. Data last updated 19 September 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$141Average$288FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Glasgow Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Glasgow Intl.

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, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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