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Cheap flights from Glasgow to London Heathrow Airport from £32

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 22/7. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — LHR
1 Mar — 8 Mar1
1 adult

The best prices from Glasgow to London Heathrow are usually found in January or March, booked 85 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from Glasgow to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow (GG1) to Heathrow (LHR). 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 24 February 2025.

Round-trip from

£66

One-way from

£32

Popular in

May

Cheapest in

January

Average price

£114
British Airways
  • British Airways
  • 15/8-18/8
  • Nonstop
  • 2h 45m total
  • Glasgow to London
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British Airways
  • British Airways
  • 22/7
  • Nonstop
  • 1h 20m total
  • Glasgow to London
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£8 potential increase over avg. return price).
Search Deals
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 February 2025
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Find flight deals from Glasgow to Heathrow

Cheapest flights from Glasgow to Heathrow
Explore the most affordable flight options available from Glasgow to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 February 2025.

Fri 17/1020:25GLA - LHR
Nonstop1h 20mBritish Airways
Mon 20/1006:30LHR - GLA
Nonstop1h 25mBritish Airways
Deal found 23/2£66
Wed 15/1020:30GLA - LHR
Nonstop1h 20mMultiple Airlines
Fri 17/1007:25LHR - GLA
1 stop8h 25mMultiple Airlines
Deal found 24/2£134
Thu 20/306:05GLA - LHR
1 stop4h 40mKLM
Mon 24/317:50LHR - GLA
1 stop4h 15mKLM
Deal found 23/2£213
Wed 12/316:45GLA - LHR
1 stop4h 15mAer Lingus
Sat 15/320:45LHR - GLA
1 stop14h 45mAer Lingus
Deal found 24/2£214

Find flights from Glasgow to Heathrow within your budget

Customise your flight search to find flights from Glasgow to Heathrow 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 24 February 2025.

Fly from

Glasgow

Fly to

Heathrow

Route

Depart

Return

Price

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Fri 15/8

20:25-21:45

Nonstop1h 20m

London Heathrow

Mon 18/8

06:30-07:55

Nonstop1h 25m

£66

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Tue 8/4

07:35-14:15

1 stop6h 40m

London Heathrow

Tue 22/4

06:15-07:40

Nonstop1h 25m

£127

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Tue 25/3

13:25-19:15

1 stop5h 50m

London Heathrow

Tue 1/4

19:15-23:10

1 stop3h 55m

£206

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Tue 22/7

20:25-21:45

Nonstop1h 20m

£32

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Tue 24/6

15:55-21:40

1 stop5h 45m

£74

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Sun 23/3

20:10-21:00

1 stop24h 50m

£85

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Wed 5/3

13:50-15:20

Nonstop1h 30m

£140

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Thu 31/7

12:05-19:35

1 stop7h 30m

£142

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Sun 23/3

13:25-21:25

2 stops8h 00m

£214

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

Sat 1/3

06:00-13:05

2 stops7h 05m

£214

Flights are sorted by cheapest return flights first.

Deals found on 23/2

Showing 1-10 of 11 results
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Best time to book a flight from Glasgow to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Glasgow 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.

Travel insights for flights from Glasgow to Heathrow

Get recent, data-driven insights about flights from Glasgow to Heathrow including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Glasgow to Heathrow. Price data was last updated on 14 February 2025.

The price you pay for your flight from Glasgow to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 85 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Glasgow to London Heathrow Airport (average of £112). Flying from Glasgow to London Heathrow Airport in August is currently the most expensive (average of £163). 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 GLA to LHR?

Find hourly flight availability from Glasgow to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 24 February 2025.

A simple way to save on the total cost of your ticket is to fly from Glasgow to London Heathrow Airport in the evening. If you’re flexible enough to do this you can expect to save up to 31% on your trip compared to booking a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly return from Glasgow to Heathrow. Price data was last updated on 16 February 2025.

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

Weekly flight availability from Glasgow to London Heathrow Airport

Explore weekly flight availability from Glasgow to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 24 February 2025.

The most flights from GG1 to LHR are scheduled on a Monday (60 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 24 February 2025.
Get a feel of what it's like to fly with KLM, LOT and Air France from Glasgow to London by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,333 reviews
Check prices

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,333 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

LOT
7.6
Good
1,081 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Air France
7.4
Good
1,446 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Aer Lingus
7.0
Good
1,071 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Iberia
7.0
Good
2,641 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Boarding

7.8

Comfort

7.7

Overall

7.8

Entertainment

7.2

Crew

8.4

Food

7.3

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

Find useful and relevant information for your journey from Glasgow to Heathrow. 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 Glasgow to London Heathrow Airport round-trip?

    Currently priced at £66, British Airways will fly you from Glasgow to London Heathrow Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from KLM and Aer Lingus - these airlines can fly you to your destination from £206 and £214, respectively. British Airways is priced at 42% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Glasgow to London Heathrow Airport one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at £32. Aer Lingus flights start at £85 while deals on Iberia start at £140 one-way.

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

    Before booking your flight to London Heathrow Airport from Glasgow, check out the most reliable airlines to get you to your destination on time: Royal Air Maroc (92%), Malaysia Airlines (87%), Kenya Airways( 87%).

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

    Looking at all options, your cheapest flight can be booked for £42. While the most popular route (Glasgow Intl - London Heathrow) can be booked for £66 on average our data indicates £1,378 when flying from Glasgow to London Heathrow Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Glasgow to Heathrow 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 Glasgow to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Glasgow to London Heathrow Airport (average of £112). Flying from Glasgow to London Heathrow Airport in August is currently the most expensive (average of £163). 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?

Book flights to Glasgow if you plan to visit one of these locations
Deal
Hounslow
Milton Keynes
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Gatwick
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Luton
Ilford
Hayes
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Northampton
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Watford

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Alternative routes for Glasgow to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Glasgow to Heathrow

Discover the top 3 airlines that operate flights from Glasgow to Heathrow. 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 24 February 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£36Average£80FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£65Average£127FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LoganairCheapest£150Average£179FlexibilityNo cancel feeOn-time79%
Search Loganair 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 Glasgow to Heathrow?

Cheapflights helps you search for flights from Glasgow to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights helps you find that perfect flight to Heathrow from Glasgow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

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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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