Cheap flights from Glasgow to London from £21

The cheapest month to fly to London Gatwick Airport from Glasgow is in March. Flight prices, which tend to average around £72, are often lower during this time because this is during the off-season. If you don’t want to visit London Gatwick Airport in March, then you should wait until February to fly from Glasgow, when ticket prices are also cheap, with an average price of £87.

According to our data, Friday is the cheapest day to fly to London Gatwick Airport from Glasgow. The lowest ticket price found for a Friday departure recently was £164. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Glasgow to London Gatwick Airport on a Saturday will generally be more expensive and average around £529. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our data shows that the cheapest Glasgow to London Gatwick Airport flights are usually those with departure times in the evening. Our users have found flights to London Gatwick Airport in the evening for as low as £84. In contrast, the most expensive time of day to depart to London Gatwick Airport is in the morning when prices are around £533.

Fly from Glasgow Intl to London Gatwick for the best Glasgow - London Gatwick flight prices

You are more likely to see cheaper flights to London Gatwick Airport from Glasgow when booking weeks ahead of your departure date. In general, you can expect to find flights to London Gatwick Airport for around £98 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Gatwick Airport from Glasgow for as low as £72 on momondo.

There are 3 cabin classes available to choose from on Glasgow to London Gatwick Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 16% of flights between Glasgow and London have experienced a delay on any given week. The average delay length over the past 12 months has been 113 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 7% of their flights experiencing any sort of delay.

As of August 2026, there are 1 flights per day flying from Glasgow to London Gatwick Airport. The most common time of day flights depart is 07:00, with 67% of flights taking off at midday.

11 flights are operational weekly from Glasgow to London Gatwick Airport as of August 2026. The most popular departure day for this route is Fri, with 64% of flights per week taking off on this day.