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$86+ Cheap flights from Glasgow Intl (GLA) to Heathrow (LHR)

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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — LHR
พ.ย. 27 — ธ.ค. 41
พฤ. 11/27
พฤ. 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from Glasgow Intl to London Heathrow are usually found in January or March, booked 85 days in advance, depart on a Friday or Sunday and return on a Monday

Cheap flight deals from Glasgow Intl to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow Intl (GLA) 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 ตุลาคม 28, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$118
(Mytrip)

One-way from

$86
(Booking.com)

Popular in

June

Cheapest in

January

Average price

$155

Good round-trip deal

$689 or less

Good one-way deal

$468 or less
Provider with most accurate pricing for Glasgow Intl-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Glasgow Intl-London Heathrow flights.
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From Glasgow Intl to London Heathrow
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One-way flight from Glasgow Intl to London Heathrow
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Highest demand for flights based on searches. 10% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($2 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Glasgow Intl to London Heathrow.
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Price to beat on a one-way flight from Glasgow Intl to London Heathrow.
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Find flight deals from Glasgow Intl to Heathrow

Cheapest flights from Glasgow Intl to Heathrow
Explore the most affordable flight options available from Glasgow Intl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on ตุลาคม 28, 2025.

This Mytrip deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พ. 12/107:05 pmGLA - LHR
Nonstop1h 20mBritish Airways
พ. 12/179:00 pmLHR - GLA
Nonstop1h 30mBritish Airways
Deal found 10/26$118
This British Airways deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พฤ. 12/115:55 amGLA - LHR
Nonstop1h 35mBritish Airways
พฤ. 12/186:20 amLHR - GLA
Nonstop1h 25mBritish Airways
Deal found 10/27$120
This British Airways deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ส. 11/295:20 pmGLA - LHR
Nonstop1h 20mBritish Airways
จ. 12/16:55 pmLHR - GLA
Nonstop1h 30mBritish Airways
Deal found 10/27$126
This British Airways deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ศ. 12/198:25 pmGLA - LHR
Nonstop1h 20mBritish Airways
อา. 1/46:55 amLHR - GLA
Nonstop1h 25mBritish Airways
Deal found 10/28$127
This Mytrip deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 11/248:25 pmGLA - LHR
Nonstop1h 20mBritish Airways
จ. 12/16:55 pmLHR - GLA
Nonstop1h 30mBritish Airways
Deal found 10/27$132
This British Airways deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ศ. 11/218:15 amGLA - LHR
Nonstop1h 35mBritish Airways
อา. 11/236:55 amLHR - GLA
Nonstop1h 25mBritish Airways
Deal found 10/28$133
This British Airways deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
จ. 12/298:25 pmGLA - LHR
Nonstop1h 20mBritish Airways
จ. 1/56:25 amLHR - GLA
Nonstop1h 25mBritish Airways
Deal found 10/27$134
This Expedia deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ส. 12/136:50 pmGLA - LHR
Nonstop1h 20mBritish Airways
อา. 12/146:55 amLHR - GLA
Nonstop1h 25mBritish Airways
Deal found 10/27$135
This Expedia deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
อ. 12/911:40 amGLA - LHR
Nonstop1h 35mBritish Airways
อา. 12/216:55 amLHR - GLA
Nonstop1h 25mBritish Airways
Deal found 10/26$136
This British Airways deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ศ. 10/316:35 amGLA - LHR
Nonstop1h 35mBritish Airways
อา. 11/28:00 amLHR - GLA
Nonstop1h 25mBritish Airways
Deal found 10/27$140
This British Airways deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ศ. 12/198:25 pmGLA - LHR
Nonstop1h 20mBritish Airways
อา. 12/216:55 amLHR - GLA
Nonstop1h 25mBritish Airways
Deal found 10/27$143
This British Airways deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
พฤ. 10/303:20 pmGLA - LHR
Nonstop1h 30mBritish Airways
พ. 11/128:00 pmLHR - GLA
Nonstop1h 30mBritish Airways
Deal found 10/27$147

Cheapflights Fare Finder

 
Customize your flight search to find flights from Glasgow Intl 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 2,558,603 searches. Data last updated ตุลาคม 28, 2025.
Use the filters below to find and compare flights from Glasgow Intl Airport to London Heathrow Airport that are best for you.

Fly from

Glasgow Intl

Fly to

Heathrow

Route

Depart

Return

Price

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

พ. 12/10

7:05 pm-8:25 pm

Nonstop1h 20m

London Heathrow

พ. 12/17

9:00 pm-10:30 pm

Nonstop1h 30m

$118

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

ส. 12/6

6:50 pm-8:10 pm

Nonstop1h 20m

London Heathrow

อ. 12/9

6:25 am-7:50 am

Nonstop1h 25m

$120

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

พฤ. 12/11

5:55 am-7:30 am

Nonstop1h 35m

London Heathrow

พฤ. 12/18

6:20 am-7:45 am

Nonstop1h 25m

$120

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

พฤ. 1/15

5:55 am-7:30 am

Nonstop1h 35m

London Heathrow

จ. 1/19

7:55 pm-9:25 pm

Nonstop1h 30m

$121

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

อ. 1/13

10:50 am-12:25 pm

Nonstop1h 35m

London Heathrow

อา. 1/18

6:55 am-8:20 am

Nonstop1h 25m

$121

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

อา. 1/11

5:55 am-7:30 am

Nonstop1h 35m

London Heathrow

อา. 1/18

6:55 am-8:20 am

Nonstop1h 25m

$121

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

อ. 1/13

11:40 am-1:15 pm

Nonstop1h 35m

London Heathrow

พฤ. 1/22

6:20 am-7:45 am

Nonstop1h 25m

$121

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

พฤ. 1/15

5:55 am-7:30 am

Nonstop1h 35m

London Heathrow

อ. 1/20

6:25 am-7:50 am

Nonstop1h 25m

$121

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

ส. 1/10

6:50 pm-8:10 pm

Nonstop1h 20m

London Heathrow

ส. 1/17

6:25 am-7:50 am

Nonstop1h 25m

$121

GlasgowLondon

GLA - LHR

GLALHR

Glasgow Intl

อา. 1/11

5:55 am-7:30 am

Nonstop1h 35m

London Heathrow

พฤ. 1/22

6:20 am-7:45 am

Nonstop1h 25m

$121

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 21 results
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Compare providers for flights from Glasgow Intl to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Glasgow Intl to Heathrow in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
MytripPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Glasgow Intl Airport-London Heathrow Airport flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Glasgow Intl Airport-London Heathrow Airport flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Glasgow Intl Airport-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Glasgow Intl Airport-London Heathrow Airport flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Glasgow Intl Airport-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Glasgow Intl to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Glasgow Intl with our price prediction graph.
Estimated round-trip 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 Glasgow Intl Airport to London Heathrow Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Glasgow Intl to Heathrow. Price data was last updated on October 24, 2025.

To ensure you get the cheapest price possible for a flight from Glasgow Intl Airport to London Heathrow Airport, you should look to book at least 85 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from Glasgow Intl Airport to London Heathrow Airport (average of $79). Flying from Glasgow Intl Airport to London Heathrow Airport in May is currently the most expensive (average of $102). 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 Intl 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 ตุลาคม 28, 2025.

One of the essential ways to save on airfare from Glasgow Intl Airport to London Heathrow Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 8% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Glasgow Intl to Heathrow. Price data was last updated on October 26, 2025.

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

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 ตุลาคม 28, 2025.
Get a feel of what it's like to fly with British Airways from Glasgow Intl Airport to London Heathrow Airport 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.
British Airways
6.7
Okay
7,483 reviews

Overall

6.7

Food

6.3

Boarding

6.9

Comfort

6.7

Entertainment

6.4

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
British Airways
6.7
Okay
7,483 reviews
British Airways
6.7
Okay
7,483 reviews

Overall

6.7

Food

6.3

Boarding

6.9

Comfort

6.7

Entertainment

6.4

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

Related info for your journey

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

    There are many flights that can get you from Glasgow Intl Airport to London Heathrow Airport in 1h 20m. Fly via British Airways to get the fastest option. The distance from Glasgow Intl Airport to London Heathrow Airport is about 345 mi. Generally, flights for this route are nonstop.

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

    British Airways, at $106, was found to be the cheapest airline from Glasgow Intl Airport to London Heathrow Airport.. This flight start at 33% lower than the current average price 3 months from now.

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

    The top 3 most reliable airlines when flying from Glasgow Intl Airport to London Heathrow Airport are American Airlines (84%), Finnair (78%) and Iberia (78%).

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

    Looking for the cheapest flight from Glasgow Intl Airport to London Heathrow Airport? While on average our users pay $753, our data indicates the cheapest price to be $112. The most popular route (Glasgow Intl - London Heathrow), is priced around $84.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Glasgow Intl Airport to London Heathrow Airport (average of $79). Flying from Glasgow Intl Airport to London Heathrow Airport in May is currently the most expensive (average of $102). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Glasgow Intl to Heathrow

Discover the top airline that operate flights from Glasgow Intl 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 2,558,603 searches. Data last updated ตุลาคม 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$106Average$175FlexibilityNo cancel feeOn-time70%

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