LHR

£64 Find Cheap Flights from Glasgow to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Glasgow to Heathrow departing on 21/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Glasgow to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Glasgow to London, as well as popular online travel agencies
Travellers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£84
Overall average: £107
British Airways
Sat 14/3Tue 31/3
GLA - LHR • Direct
Cheapest one-way flight
£64
Typical prices: £64-£118
British Airways
Sat 21/3
GLA - LHR • Direct
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
BA's economy seats offer ergonomic leather comfort.
Use priority security at Glasgow Airport to skip queues.
Expert advice
Expert advice
Expert advice
Expert advice
Top routes
GLA
-
LHR
Cheapest • 18% average savings
GLA
-
LHR
Most popular
Insights
Insights
Insights
Insights
When to book
5 weeks
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 23% compared to booking last minute.
Insights
Insights
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Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
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Flight Deals

Cheap Flights from Glasgow to Heathrow

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Glasgow to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Glasgow to Heathrow

Sat, 14 Mar - Tue, 31 Mar
British Airways Logo
06:35 - 08:10
GLA
-
LHR
1h 35mdirect
British Airways Logo
22:05 - 23:20
LHR
-
GLA
1h 15mdirect
£84British Airways
Sat, 21 Mar - Sat, 28 Mar
British Airways Logo
14:05 - 15:35
GLA
-
LHR
1h 30mdirect
British Airways Logo
06:25 - 07:50
LHR
-
GLA
1h 25mdirect
£85British Airways
Thu, 19 Mar - Thu, 26 Mar
British Airways Logo
20:20 - 21:40
GLA
-
LHR
1h 20mdirect
British Airways Logo
07:25 - 08:50
LHR
-
GLA
1h 25mdirect
£86British Airways
Thu, 19 Mar - Thu, 26 Mar
British Airways Logo
20:20 - 21:40
GLA
-
LHR
1h 20mdirect
British Airways Logo
06:20 - 07:45
LHR
-
GLA
1h 25mdirect
£87British Airways
Fri, 6 Mar - Mon, 9 Mar
British Airways Logo
12:45 - 14:15
GLA
-
LHR
1h 30mdirect
British Airways Logo
18:55 - 20:25
LHR
-
GLA
1h 30mdirect
£89British Airways
Thu, 12 Mar - Mon, 16 Mar
British Airways Logo
16:50 - 18:10
GLA
-
LHR
1h 20mdirect
British Airways Logo
17:55 - 19:25
LHR
-
GLA
1h 30mdirect
£90British Airways
Wed, 11 Mar - Thu, 19 Mar
British Airways Logo
10:55 - 12:30
GLA
-
LHR
1h 35mdirect
British Airways Logo
06:20 - 07:45
LHR
-
GLA
1h 25mdirect
£91British Airways
Fri, 13 Mar - Tue, 17 Mar
British Airways Logo
20:25 - 21:45
GLA
-
LHR
1h 20mdirect
British Airways Logo
08:25 - 09:50
LHR
-
GLA
1h 25mdirect
£91British Airways
Fri, 13 Mar - Tue, 17 Mar
British Airways Logo
20:25 - 21:45
GLA
-
LHR
1h 20mdirect
British Airways Logo
07:30 - 08:55
LHR
-
GLA
1h 25mdirect
£92British Airways
Fri, 20 Mar - Sun, 22 Mar
British Airways Logo
20:25 - 21:45
GLA
-
LHR
1h 20mdirect
British Airways Logo
06:55 - 08:20
LHR
-
GLA
1h 25mdirect
£93British Airways
Booking Insights

KAYAK's insights & trends for Glasgow to Heathrow flights

Get data-powered insights and trends into flights from Glasgow to Heathrow to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Glasgow to London Heathrow Airport flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The absolute cheapest return flight from Glasgow to London Heathrow Airport costs £111 on the route between Glasgow Intl Airport (GLA) and London Heathrow Airport (LHR). However, over the past month, flights between Dundee (DND) and London Heathrow Airport (LHR) were, on average, 18% cheaper than other Glasgow-London Heathrow Airport routes. The most popular route is between Glasgow Intl Airport (GLA) and London Heathrow Airport (LHR).

What’s the cheapest day of the week to fly from Glasgow to London Heathrow Airport?

The average price of all round-trip flights from Glasgow to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to London Heathrow Airport on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Glasgow to London Heathrow Airport. For your return ticket, we recommend flying on a Friday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Glasgow to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Glasgow to London Heathrow Airport is March, where tickets cost £107 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £142 and £130 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Glasgow to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Glasgow to London Heathrow Airport, you should book around 5 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Expert advice

Expert advice for your flight from Glasgow to Heathrow

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on Finnair

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Kirstie Pickering

Kirstie Pickering

Expert on LHR and GLA

Aviation and business journalist Kirstie didn’t leave England until she was 18 years old, but has since travelled to over 20 countries including Japan, Canada, and Iceland. Her travel expertise lies in European city breaks, including how to find the best locally-owned hotels and restaurants and how to optimise the airport experience for your needs.

Good to know - Cheap tickets from Glasgow to London Heathrow Airport

Cheapest flight£64
Flight from Glasgow Airport to London Heathrow Airport

When to book flights from Glasgow to Heathrow

Are your dates flexible? Find out the best times to travel from Glasgow to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Glasgow to London Heathrow Airport flights

  • What is the cheapest flight from Glasgow to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Glasgow to London Heathrow Airport was £64 for a one-way ticket and £84 for a return.

  • Which airports will I be using when flying from Glasgow to London Heathrow Airport?

    When flying out of Glasgow you will be using one of these airports: Glasgow Intl or Glasgow Prestwick. You will be landing at London Heathrow.

  • Which aircraft models fly most regularly from Glasgow to London Heathrow Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Glasgow to London Heathrow Airport?

    SkyTeam, and oneworld are the airline alliances operating flights between Glasgow and London Heathrow Airport, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Glasgow to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Glasgow to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Glasgow to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Glasgow is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Glasgow to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Glasgow with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Glasgow to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Glasgow up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Glasgow to London Heathrow Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Glasgow to London Heathrow.
Find which airlines fly direct from Glasgow to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Glasgow to London Heathrow

Monday

British Airways

British Airways

Tuesday

British Airways

British Airways

Wednesday

British Airways

British Airways

Thursday

British Airways

British Airways

Friday

British Airways

British Airways

Saturday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Direct returns

London Heathrow to Glasgow

Monday

British Airways

British Airways

Tuesday

British Airways

British Airways

Wednesday

British Airways

British Airways

Thursday

British Airways

British Airways

Friday

British Airways

British Airways

Saturday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Reviews of the top 3 airlines flying from Glasgow to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Glasgow to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Glasgow to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.7
KLMOverall score based on 1449 reviews
7.1Entertainment
7.6Comfort
7.8Boarding
8.4Crew
7.3Food
Airline reviews

Empty seats next to me - wish it had been for a longer flight!!

8.0 ExcellentAnonymous, Feb 2026
AMS - NCL
Read more KLM reviews

Empty seats next to me - wish it had been for a longer flight!!

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Terrible last row seats many seats available but no offer to move to better seat

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

The best budget airline in Europe. Flight was on time, crew friendly and worked hard during flight and were able to meet our needs. Only downside (not the airline's fault), there were no rear steps.

It was transportation nothing more. I will give a positive rating over Ryanair. We missed our Ryanair flight the night before and received rude and unconcerned treatment from the Ryanair customer service. It was late. We were very tired and stressed after doing our best to get to the airport. The so called customer service ladies were completely unconcerned from the start. Aside from that, the flight to London seemed to be their opportunity for advertising. No time to relax as attendants were constantly in the aisle selling. I will never fly Ryanair again!!

Boarding and disembarking were smooth. Not offering free water was cheap ... I've never encountered that before on a flight.

Boarding could be better. To get through your gate but to be stood in a corridor for 20 minutes is not great.

The plane was postponed for over 2.5 hours, which meant that all four of us missed the check in time for our ongoing trip to Melbourne. We had to buy new tickets for 4 people as we had to forfeit the ones we had. The cost was really unfair. i understand that it was snowing during the first leg of the plane for that morning. Surely the cost could have been shared by the airline and not all by us. I could have bought insurance - but you can see how much I travel. I will need to chose more trustworthy airlines.

The true is that travel from London to Faro on 11/12/2025 by BA was cancelled, so I did not go to Faro, so i did not board easy flight. The mediocre qualification to you was because even when i bought an insurance, i could not change date neither obtain reimbursement. It could be ideal if you do something in order for me not to lose the purchase Thank you

Queuing for quite a while despite using the "speedy boarding".

Would not advise EasyJet for a 5 hour flight…small plane and hence a lot of turbulence. No inflight entertainment so struggle to pass time in cramped seats. We also fell victim to extra charge for our cabin bags, although bag dimensions were ok, but the handle was rigid and slightly fell outside their testing cage!!….never again will we fly with this airline and be party to their scams for making money!

The food and so are to expensive and old . Crew whas not very friendly . Apparently some other passenger can just Push through the waiting people to board while almost punching me and a father with a child down the stairs. Its always something with easy jet . The seats of row 26 where lose . And for a guy of my size there is absolutely no leg room at all .

Nice to fly out of Orly smaller easier to navigate airport. Being able to receive boarding pass well in advance of trip was comforting to know all travel was in order.

This review if for American Airlines. From London to LA, British Airways customers flew American Airlines and there was a small incident on the plane with a customer that was sitting next to me. She had a gluten free meal which she selected online. The flight attendant brought her food and both times, it contained gluten (bread, cracker) and by the second time, the customer mentioned about the issue to the flight attendant because she is highly allergic to gluten. Customer was very gentle and just wanted to note that both her meals contained gluten on the tray. The whole situation could have ended really well if flight attendant just apologized and mentioned she would relay the message to the responsible party. Instead, she entered defensive mode and started making some BS excuse about how the cracker that was supposed to be mine, fell onto her tray instead. Mind me, I already had that cracker on my tray. I doubt I would be given two. Also, she mentioned that the bread from the previous meal was gluten free. REALLY? I ate that bread and it tasted like it had PLENTY of gluten. The whole situation was handled so poorly, not only by that one flight attendant, but by 2 others. The reason I intervened is because the customer sitting next to me was tearing and all she did was mention the mistake which could have cause her health great damage, and instead she received attacks and excuses. AA, you should train your employees how to better handle situations like this. A 'well, I don't see why this problem is a big deal since you (the customer with allergies) read the ingredients and avoided eating the cracker that "accidentally fell" from the tray of the customer sitting next to you,' should not have been coming out of a flight attendant's mouth.

Continue to be disappointed that the “food” for “ordinary” fare paying passengers is poor - on this flight it consisted of a packet of two biscuits and a small bottle of water … not even offered a “free” cup of tea or coffee. Suggest a review of the “menu” and offer a hot drink to ordinary (economy class) passengers. On this route there are many far cheaper flights available - paying almost £200 for a flight that could have been bought for less than half this price should have some “perks” - offering hot drinks to all passengers would, in my opinion, be a cost effective measure which would improve the image of British Airways.

Aircraft was comfortable even in economy, clean. Entertainment screens were excellent and. Hoice was very good. Good was just ok. Crew was not bad.

Entertainment system didn't work well. Also no new movies and limited choice of other programmes. . And only one USB A charger option. Most modern electronic items needs USB C. Planes should offer both

I was unable to board the flight because I was unable to acquire a visa , Brexit changed my ability to get an ETA, I’m a Trinidad citizen and it takes weeks to get a visa

The issue was not with BA it was with the link yoiu sent fopr booking the flight

The space in the seat was okay, the staff were friendly, the entertainment system, my touch screen was not working and some of the films listed on the website for the flight were not available.

BA flight from London NY had old BC configuration with 2+3+2 seating with open seats which was not comfortable and lacked privacy

Flew business- but plane was dirty, food horrendous. Too many business class seats diluted service levels overall.

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Everything you need to know for your flight from Glasgow to Heathrow

Information on your arrival and departure airports