Cheap flights from Glasgow Intl Airport to London from $81

The cheapest month to fly to London from Glasgow Intl Airport is in January. Flight prices, which tend to average around $84, are often lower during this time because this is during the off-season. The month of February is another great option to travel to London, with average flight prices from Glasgow Intl Airport averaging around $101.

The cheapest day to depart from Glasgow Intl Airport to London is on a Thursday. Travelers who choose to depart for London on a Thursday will often find tickets for as low as $658. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $872. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

Flying to London from Glasgow Intl Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $192 when looking at flights departing in the evening. Flights to London are more costly in the morning, with an average ticket price of $812. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to London from Glasgow Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $170 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Glasgow Intl Airport for as low as $142 on momondo.

There are 4 cabin classes available to choose from on Glasgow Intl to London 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 12% 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 99 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening 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. Sunday 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 10% of their flights experiencing any sort of delay.

As of March 2026, 13 flights take off from Glasgow Intl Airport and land in London each day. The most common flight departure time for this route is 6:00AM, with 51% of daily flights taking off at noon.

As of March 2026, there are 92 flights per week flying from Glasgow Intl Airport to London. The most common day of the week flights depart is Thu, with 57% of flights taking off on this day.