Cheap flights from Glasgow Intl Airport to Belfast from £18

The cheapest month to fly to Belfast from Glasgow Intl Airport is in May. Flight prices, which tend to average around £58, are often lower during this time because this is during the off-season. If you aren’t able to travel to Belfast during the month of May, then flying in January is also cheap. Prices for this month can be found on momondo for an average of £60.

The cheapest day to depart on your flight to Belfast is on a Wednesday when prices can be found for as low as £60. This is often the case because there is less demand to fly during this day of the week. Flights from Glasgow Intl Airport to Belfast on a Sunday will generally be more expensive and average around £76. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

The cheapest time of day to fly to Belfast is in the evening when flights can be purchased for as low as £64. Flights to Belfast are more costly at midday, with an average ticket price of £87. Departure times at midday fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Glasgow Intl to Belfast City for the best Glasgow Intl - Belfast flight prices

You are more likely to see cheaper flights to Belfast from Glasgow Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Belfast for around £64 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belfast from Glasgow Intl Airport for as low as £47 on momondo.

There are 2 cabin classes available to choose from on Glasgow Intl Airport to Belfast flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

easyJet is the most popular carrier operating from Glasgow Intl to Belfast

easyJet, Aer Lingus and Loganair are the top three most popular airlines that fly to Belfast from Glasgow Intl Airport according to our data. easyJet is the first choice among our users, with 78% of people opting to fly with this airline when travelling to Belfast. Keep in mind that there are 3 different airlines that fly to Belfast on a routine basis, so you have a few additional options to choose from.

As of August 2026, 2 flights take off from Glasgow Intl Airport and land in Belfast each day. The most common flight departure time for this route is 11:00, with 56% of daily flights taking off at midday.

The number of flights available between Glasgow Intl Airport and Belfast is 17 per week as of August 2026. The most frequent departure day is Fri, with 41% of weekly flights leaving on this day.