GLA - LHR

£49 Find Cheap Flights from Glasgow Airport to London Heathrow Airport – Compare and Save

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 Intl to Heathrow departing on 17/7. 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

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Everything you should know

Cheapest return fare
£95
Typical prices: £115-£203
British Airways
Tue 25/8Fri 28/8
GLA - LHR • Direct
Cheapest one-way flight
£49
Typical prices: £77-£167
British Airways
Fri 17/7
GLA - LHR • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
British Airways free cabin bags add value and avoid surprise fees.
Finnair Economy Comfort adds legroom; Wi-Fi includes 30 free minutes in Europe.
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Direct flights
You can fly direct with British Airways. Average duration is 1h 29m
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Most punctual • 90% on-time
Best time • Fewest delays
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When to book
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 34% compared to booking last minute.
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When to travel
Cheapest • 18% price drop
Most popular
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Flight Deals

Cheap Flights from Glasgow Intl to Heathrow (GLA-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Glasgow Intl 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 Intl to Heathrow

Tue, 25 Aug - Fri, 28 Aug
British Airways Logo
07:00 - 08:35
GLA
-
LHR
1h 35mdirect
British Airways Logo
16:00 - 17:30
LHR
-
GLA
1h 30mdirect
£95British Airways
Wed, 12 Aug - Wed, 19 Aug
British Airways Logo
17:40 - 19:05
GLA
-
LHR
1h 25mdirect
British Airways Logo
09:00 - 10:30
LHR
-
GLA
1h 30mdirect
£96British Airways
Sat, 25 Jul - Tue, 28 Jul
British Airways Logo
06:35 - 08:10
GLA
-
LHR
1h 35mdirect
British Airways Logo
06:15 - 07:40
LHR
-
GLA
1h 25mdirect
£98British Airways
Sun, 26 Jul - Sun, 2 Aug
British Airways Logo
06:00 - 07:35
GLA
-
LHR
1h 35mdirect
British Airways Logo
22:15 - 23:30
LHR
-
GLA
1h 15mdirect
£99British Airways
Wed, 22 Jul - Wed, 29 Jul
British Airways Logo
15:35 - 17:00
GLA
-
LHR
1h 25mdirect
British Airways Logo
07:10 - 08:35
LHR
-
GLA
1h 25mdirect
£99British Airways
Sat, 18 Jul - Sat, 25 Jul
British Airways Logo
19:45 - 21:05
GLA
-
LHR
1h 20mdirect
British Airways Logo
21:55 - 23:10
LHR
-
GLA
1h 15mdirect
£100British Airways
Sat, 18 Jul - Sat, 25 Jul
British Airways Logo
19:45 - 21:05
GLA
-
LHR
1h 20mdirect
British Airways Logo
21:55 - 23:10
LHR
-
GLA
1h 15mdirect
£101British Airways
Wed, 22 Jul - Wed, 29 Jul
British Airways Logo
14:05 - 15:35
GLA
-
LHR
1h 30mdirect
British Airways Logo
08:15 - 09:40
LHR
-
GLA
1h 25mdirect
£102British Airways
Thu, 20 Aug - Tue, 25 Aug
British Airways Logo
20:50 - 22:10
GLA
-
LHR
1h 20mdirect
British Airways Logo
07:20 - 08:45
LHR
-
GLA
1h 25mdirect
£102British Airways
Thu, 6 Aug - Tue, 11 Aug
British Airways Logo
07:00 - 08:35
GLA
-
LHR
1h 35mdirect
British Airways Logo
20:15 - 21:35
LHR
-
GLA
1h 20mdirect
£103British Airways
Booking Insights

KAYAK’s insights & trends for Glasgow Intl to Heathrow flights

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

How much is a return flight from Glasgow Intl Airport to London Heathrow Airport?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Glasgow Intl Airport to London Heathrow Airport departing in August.

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

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

Your flight ticket price will generally be cheaper if you fly to London Heathrow Airport on a Friday and more expensive on a Sunday. On your return trip to Glasgow Airport, you should consider flying back on a Saturday, and avoid Sundays for better deals.

What is the cheapest month to fly from Glasgow Intl Airport 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 Intl Airport 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 Intl Airport to London Heathrow Airport is February, where tickets cost £111 (return) on average. On the other hand, the most expensive months are June and August, where the average cost of round-trip tickets is £171 and £155 respectively.

How far in advance should I book a flight from Glasgow Intl Airport 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 Intl Airport 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 Intl Airport to London Heathrow Airport, you should book around 5 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Expert advice

Expert advice for your flight from Glasgow Intl 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 Airport to London Heathrow Airport

Low seasonFebruary
Cheapest flight£49
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (15% more expensive on average)
Flight from Glasgow Airport to London Heathrow Airport

When to book flights from Glasgow Intl to Heathrow

Are your dates flexible? Find out the best times to travel from Glasgow Intl 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 Airport to London Heathrow Airport flights

  • Is there public transport from Glasgow Central to Glasgow International Airport?

    First Glasgow operates the Glasgow Airport Express Service 500, the official bus that connects Glasgow Central to Glasgow International Airport in just under 15min. Glasgow Airport Express Service 500 operates 24h daily throughout the year, except on Christmas Day.

  • Are there services and facilities for disabled passengers at Glasgow International Airport?

    Glasgow International Airport has well-equipped parking lot for disabled travellers. The airport can arrange for special assistance in advance by calling on the airport's Special Assistance Office. Glasgow International Airport collaborates with various airlines to assist passengers for free and ensure their journey is less stressful.

  • Is there public transport from London Heathrow to downtown London?

    There are four transfer options from Heathrow Airport to central London, namely buses, Underground, train, and taxi. A one-way Heathrow Express ticket costs around £22, and the journey to Paddington Station in London takes about 15min. Heathrow Shuttles offer a lower door-to-door transfer option from the airport to various resorts in central London. All prices are fixed, and passengers don’t incur extra waiting times and luggage costs.

  • Where can you take a shower at London Heathrow?

    London Heathrow Airport has five lounges, where passengers can take a shower after a flight from Glasgow International Airport. The Elemis Travel Spa, formally known as British Airways Arrivals Lounge, offers shower facilities at the Arrivals Area, on the public side. The airport also offers unisex wheelchair-accessible shower and toilet facilities.

  • Are there cell phone charging areas at London Heathrow?

    London Heathrow ranks as the world’s most mobile-friendly airport. No airport matches its charging capability. LHR has over 3,000 power sockets evenly distributed throughout the terminals to make it easier and less stressful for local and international travellers to charge their devices. There is one charging socket for every two passengers at London Heathrow Airport.

  • Does Glasgow Airport has charging areas?

    Glasgow International Airport offers free mobile charging machines with adaptors for most phones. The designated charging areas is located at Dixons airside. Passengers can also charge their devices at any of the Surfbox internet stations in the Main Departure Lounge 4 Station. Alternatively, charge your device at outlets found around the airport.

  • Are there any left-luggage facilities available at London Heathrow Airport?

    If you find yourself in need of temporary storage for your luggage at London Heathrow, you can utilise the Left Luggage services available in all terminals of the airport. The cost for storing your baggage for a day is £22.50, and you have the option to make the payment when you collect your belongings.

  • Which flights can reduce my carbon footprint when flying from Glasgow to London Heathrow?

    If you want to reduce your carbon emissions when flying from Glasgow Airport (GLA) to London Heathrow (LHR), you can fly directly with British Airways reducing your carbon footprint by 74%. Alternatively, you can also fly with Aer Lingus with a stopover at Dublin Airport (DUB), reducing carbon emissions by 76%.

  • Which are the most cost-effective car parks at Glasgow Airport?

    For the most affordable rate, the Long-Stay Car Park at Glasgow Airport is the best option. For a 7-day period, the charges will come to roughly £110; much cheaper than comparing the other two car parks such as the Fast Track parking for £260 or the Short-Stay Car Park for around £315 for the same period. The Long-Stay Car Park has a free 5-minute shuttle bus to the terminal.

  • Where can I find car hire at London Heathrow Airport?

    Upon exiting the Baggage Reclaim area, you can locate the car hire desks in the Arrivals Hall of Terminals 2, 3, 4 & 5. You will find well-known car hire agencies such as Hertz, Alamo, Enterprise and Budget, amongst others. Shuttle buses can take you from the terminals to the car rental collection areas.

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

    In the last 5 days, the lowest price for a flight from Glasgow Intl Airport to London Heathrow Airport was £49 for a one-way ticket and £95 for a return.

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

    When flying out of Glasgow Airport you will be using Glasgow Intl. You will be landing at London Heathrow Airport, also known as London Heathrow.

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

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the Glasgow Airport to London Heathrow Airport flight route.

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

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

  • On which days can I fly direct from Glasgow Airport to London Heathrow Airport?

    There are direct flights from Glasgow Airport to London Heathrow Airport on a daily basis.

  • Which is the best airline for flights from Glasgow to London, KLM or easyJet?

    The two airlines most popular with KAYAK users for flights from Glasgow to London are KLM and easyJet. With an average price for the route of £212 and an overall rating of 7.8, KLM is the most popular choice. easyJet is also a great choice for the route, with an average price of £78 and an overall rating of 6.9.

  • How does KAYAK find such low prices on flights from Glasgow Airport 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 Airport 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 Airport 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 Airport 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 Airport 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 Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Glasgow Airport 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 Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Glasgow Intl Airport to London Heathrow Airport

  • Looking for a cheap flight from London Heathrow Airport to Glasgow Airport? 25% of our users found flights on this route for £145 or less one-way and £527 or less round-trip.
  • There are plenty of fast, direct and non-stop flights from Glasgow International Airport (GLA) to London Heathrow (LHR). British Airways is the main carrier between Glasgow International Airport and London Heathrow.
  • The free Wi-Fi access at Glasgow International Airport lasts for up to 60min. However, passengers who wish to continue to access the internet beyond the free session can pay for an extra block of 180min at around £5.
  • London Heathrow Airport has approved pet relief areas in all terminals, including the Arrival Terminal. However, passengers planning to fly with their pets must first register with the Pet Travel Scheme to be allowed into London Heathrow.
  • Banking and ATM services are available at London Heathrow. Cash machines and ATMs are located post-security at the Departure Lounge.
  • Glasgow Airport offers a Left Luggage Facility, where passengers can store their bags for up to 3 months. The Left Baggage Office is located in the Check-in Hall. It costs around £8.50 to store a standard size item for up to 3h at Glasgow Airport, or around £12.50 for the entire day.
  • Glasgow Airport has coin-operated photo booths where you can take quick photos ahead of your flight. One photo booth is located near Car Park 2, while the rest are just before the Security Screening area.
  • Water fountains, supermarkets, and eateries are available at Glasgow Airport. Marks and Spencer, located after Baggage Claim, is perfect for shopping for any last-minute snacks ahead of a flight. The Tesco Supermarket, located near the entrance of the Main Terminal, offers a range of snacks or groceries that you may need ahead of a flight.
  • At Glasgow Airport (GLA), you can bypass the security lines by booking Priority Security for around £7 online. Passengers who have reserved Priority, will receive preferential treatment, allowing them to skip ahead of the general queue.
  • If you fancy putting your feet up before your flight, why not check out the comfortable Airport Lounges available at Glasgow Airport? You can pre-book the UpperDeck Lounge for around £29 per person or the Lomond Lounge for about £35 per person.

Prefer to fly direct from Glasgow Airport 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 Intl to London Heathrow.
Find which airlines fly direct from Glasgow Intl Airport to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Glasgow Intl 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 Intl

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 Intl 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 Intl 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.
7.8
KLMOverall score based on 1534 reviews
7.8Boarding
7.7Comfort
8.4Crew
7.3Food
7.2Entertainment
Airline reviews

The flight was 45 mins late leaving, we sat without a/c for some of this, 2nd Meal was a slice of pizza. Movies were good.

8.0 ExcellentAnonymous, Jun 2026
LHR - AMS
Read more KLM reviews

The flight was 45 mins late leaving, we sat without a/c for some of this, 2nd Meal was a slice of pizza. Movies were good.

As per usual when you Hit the UK it's a slow process through customs Not as efficient at Thailand for sure

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

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

The flight was great, the only reason for middle scores on entertainment and food is that it was a short flight so not included (but snacks were served including alcoholic beverages free of charge). I would definitely recommend KLM.

Was trying to change a flight but told that Canadian and local klm systems do not interact so they could not access my booking. Overall I like klm a lot but if it was important to change flights I would be very frustrated.

The plane. Airbus A330-200. Comfortable for a 7-hour flight. Seats seemed to have more legroom. I was in row 17. Flight was operated by Delta but was better than expected.

The workers checking passengers from the boarding gate stole money from people whose luggage was perfectly fitting inside the carry-on sizer.

Whole way through - far more professional and slick than I expected

Good news was that Bag Check was open two and a half hours before the flight, which is essential with the chaotic immigration process. Flight was okay, but sitting at the back of the aircraft, 3 overhead bins on both sides were filled with crew bags and other misc items, so we couldn't put our cabin bags anywhere near us. To add insult, twice the crew managed to drop items that they were taking out of the overhead bins onto my wife's head, who was sitting in an aisle seat.

You need to make signage at Berlin Airport clearer. Having checked in online we had our boarding passes onlour phones. You do not make it clear that you need to check in again to receive a printed luggage tag. You get to baggage drop off and it says you can only do it with a luggage tag BUT not how to get this.

It was good except they could offer free water and tea/coffe

Sat at rear of aircraft and was very cold. As a frequent flyer for many years, this is was the coldest I have ever been. Other passengers and some crew were complaining how cold it was. Sitting near the doors always risks being colder, just the way the aircraft works - but this was exceptional, bring a good jumper. Everything else was pretty standard easyJet - good value low cost carrier.

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".

Not great! Rude staff in London and the worse baggage reclaim I’ve ever seen. Great staff in flight but doubt I’ll fly with them again

I have noticed that the airlines, including this flight, pretend there is going to be turbulence, announce such, and say they can’t do beverage service. There is no turbulence and the seat belt light goes off 10 minutes before they ask for tray tables up and seat belts back on. They are just trying to spend less money and it’s quite transparent

I enjoyed the flight. I did find it strange that when I arrived at my seat although I had paid for a window seat that I was assigned a middle seat. Thankfully I was between a couple and they wanted to sit together. Please do a better job with this BA!

Flight was fine, food much better than anticipated, and flight attendants were helpful and friendly!

The lack of organization at the boarding gate was shocking. It was impossible to determine where the line was and it was hard to understand the announcements. It was so confusing that my wife wanted to get on the wrong flight. I am also annoyed that BA is adopting the sleazy policies that the budget airlines invented of charging extra for even the first checked bag or choosing your seat.

My flight out of Miami was delayed by 2 hours which meant I had to quickly make other arrangements for pick-up in Glasgow. A $9 voucher for food was issued. That’s not much of a gesture in my opinion.

We were never contacted that our flight from Glasgow to London was delayed. Got to airport six hours early to find that we were going to miss our connecting flight to BWI. Our flight is scheduled for two days later and they only gave us a voucher for one night hotel. E we’re delayed on the front end too and had to fly to Edinburgh instead of Glasgow arriving six hours and taking a $200 cab!

The crew were very friendly and helpful. Also, the airline was very strict and not very helpful when I wanted to start by boarding from Heathrow airport instead of Glasgow international airport. I stayed 10 hours in the airport and no hotel or any form of compensation was provided. That sucks.

Flight canceled two hours beforehand, BA reticketed us so that we would have had to leave from Edinburgh instead of Glasgow, where we were already at the airport. We would have arrived in Boston too late to get home to Vermont. Instead with some pressure we were reticketed from Glasgow on Lufthansa, which avoided Heathrow, a great benefit after our horrible experience at Heathrow when we arrived in Britain three weeks earlier. (Kayak assebled an itierary that did not leave adeqate time for the connection at Heathrow, where thousands of people were trying tio get through inadequate and badly staffed security and staff did not know the slightest details about where and which lines we should get in.) The British Airways travel experience is not to be recommended these days.

My selected seat ending up being very uncomfortable both major flights. SFO to London and back. Seat arms did not go up so it was not like suggest by BA staff. On return flight my seat had a life raft barrier in front off me and large man beside me.

Crew was great. Flight was quick . BUT boarding was outside, down and up steps w carryon. Upon arrival we were on tarmac for 45 minutes due to no buses for terminal, more than 30 of us missed our connection. Exhausting.

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

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