Cheap flights from London Heathrow Airport to Glasgow from C$ 123

In general, February is the cheapest month to fly from London Heathrow Airport to Glasgow Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 233. If you aren’t able to travel during the month of February, then book flights to Glasgow Intl Airport from London Heathrow Airport during December instead. Flights to Glasgow Intl Airport in December, while not as cheap as those in February, still average around C$ 235.

On average, the least expensive day to fly to Glasgow Intl Airport from London Heathrow Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as C$ 70. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around C$ 240. These prices are subject to change though, so be sure to set up a Price Alert for flights to Glasgow Intl Airport.

The cheapest time of day to fly to Glasgow Intl Airport is in the morning when flights can be purchased for as low as C$ 171. In contrast, the most expensive time of day to depart to Glasgow Intl Airport is in the evening when prices are around C$ 240.

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 C$ 267 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 C$ 195 on momondo.

There is only 1 cabin class 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 departing in the evening 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. Friday has historically seen more delays on average compared to the rest of the week.

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

As of September 2026, 10 flights take off from London Heathrow Airport and land in Glasgow Intl Airport each day. The most common flight departure time for this route is 6:00p.m., with 52% of daily flights taking off in the evening.

The number of flights available between London Heathrow Airport and Glasgow Intl Airport is 71 per week as of September 2026. The most frequent departure day is Sat, with 56% of weekly flights leaving on this day.