Cheap flights from London Heathrow Airport to Glasgow from $71

The cheapest month to fly to Glasgow Intl Airport from London Heathrow Airport is in February. Flight prices, which tend to average around $155, are often lower during this time because this is during the off-season. If you’re not able to fly to Glasgow Intl Airport in February, then December is your next best option. Flight prices from London Heathrow Airport to Glasgow Intl Airport during December average around $167.

Our data shows that Tuesday is the least expensive day to fly to Glasgow Intl Airport. Tickets to fly out on this day can be as low as $129. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Glasgow Intl Airport for around $172.

Our most recent data shows that the best time of day to fly to Glasgow Intl Airport is in the evening. Flights from London Heathrow Airport to Glasgow Intl Airport during this time can be as low as $144. Try not to purchase tickets at noon because they tend to be around $185. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Glasgow Intl Airport from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Glasgow Intl Airport for around $184 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Glasgow Intl Airport from London Heathrow Airport for as low as $143 on momondo.

There are 3 cabin classes available to choose from on London Heathrow Airport to Glasgow Intl 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 London and Glasgow have experienced a delay on any given week. The average delay length over the past 12 months has been 102 minutes.

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

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

According to our data, British Airways have had the least number of delays on this route over the last 12 months; with about 16% of their flights experiencing any sort of delay.

As of June 2026, there are 17 flights per day flying from London Heathrow Airport to Glasgow Intl Airport. The most common time of day flights depart is 6:00PM, with 50% of flights taking off in the evening.

As of June 2026, there are 121 flights per week flying from London Heathrow Airport to Glasgow Intl Airport. The most common day of the week flights depart is Wed, with 40% of flights taking off on this day.