£61 Find Cheap Flights from Glasgow to London Heathrow Airport – Compare and Save

The absolute cheapest return flight from Glasgow to London Heathrow Airport costs £122 on the route between Edinburgh (EDI) and London Heathrow Airport (LHR). However, over the past month, flights between Dundee (DND) and London Heathrow Airport (LHR) were, on average, 23% cheaper than other Glasgow-London Heathrow Airport routes. The most popular route is between Glasgow Intl Airport (GLA) and London Heathrow Airport (LHR).

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, Monday is the most expensive day to fly from Glasgow to London Heathrow Airport. For your return ticket, we recommend flying on a Saturday and avoiding Tuesdays for the best deals.

The cheapest month for flights from Glasgow 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 £169 and £147 respectively.

To get a below average price on the flight from Glasgow to London Heathrow Airport, you should book around 4 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Weekly flights between Glasgow and London historically see delays in approximately 9% of cases, with the average delay over the past year being 97 minutes.

Typically, flights leaving at night tend to face fewer delays, whereas flights in the evening have historically encountered delays more often.

Statistically, Tuesday is the day of the week with the fewest delays on this flight route, while Saturday has typically experienced more delays than other days.

Based on our data, British Airways have experienced the fewest delays on this route in the past 12 months, with only about 9% of their flights encountering any delays.

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Each day, there are between 15 and 24 direct flights that take off from Glasgow and land in London Heathrow Airport, with an average flight time of 1h 31m. The most common departure time is 05:00 and most flights take off in the morning. Each week, there are 145 flights. The most frequent day of departure is Thursday, when 17% of all weekly flights depart. The fewest flights depart on a Saturday.