Cheap flights from Glasgow Intl Airport to London from £18

The cheapest month to fly to London Luton Airport from Glasgow Intl Airport is in February. Flight prices, which tend to average around £56, are often lower during this time because this is during the off-season. If you don’t want to visit London Luton Airport in February, then you should wait until January to fly from Glasgow Intl Airport, when ticket prices are also cheap, with an average price of £65.

The cheapest day to depart from Glasgow Intl Airport to London Luton Airport is on a Wednesday. Travellers who choose to depart for London Luton Airport on a Wednesday will often find tickets for as low as £70. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to London Luton Airport on Sunday is £106.

Our data shows that the cheapest Glasgow Intl Airport to London Luton Airport flights are usually those with departure times in the evening. Our users have found flights to London Luton Airport in the evening for as low as £72. Try not to purchase tickets at midday because they tend to be around £100. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to London Luton Airport from Glasgow Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Luton Airport for around £79 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Luton Airport from Glasgow Intl Airport for as low as £53 on momondo.

Historically, on average around 14% 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 103 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, easyJet have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

The number of flights available between Glasgow Intl Airport and London Luton Airport is 1 per day as of May 2026. The most frequent departure time is 07:00, with 50% of daily flights leaving at midday.

As of May 2026, there are 9 flights per week flying from Glasgow Intl Airport to London Luton Airport. The most common day of the week flights depart is Sun, with 44% of flights taking off on this day.