Cheap flights from London Gatwick Airport to Belfast from £21

The cheapest month to fly to Belfast from London Gatwick Airport is in January. Flight prices, which tend to average around £75, 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 January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of £76.

The cheapest day to depart on your flight to Belfast is on a Tuesday when prices can be found for as low as £66. This is often the case because there is less demand to fly during this day of the week. Flights from London Gatwick Airport to Belfast on a Friday will generally be more expensive and average around £82. 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 morning when flights can be purchased for as low as £90. Flights to Belfast are more costly in the afternoon, with an average ticket price of £117. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from London Gatwick to Belfast City for the best London Gatwick - Belfast flight prices

You are more likely to see cheaper flights to Belfast from London Gatwick Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Belfast for around £91 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 London Gatwick Airport for as low as £63 on momondo.

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

As of September 2026, 2 flights take off from London Gatwick Airport and land in Belfast each day. The most common flight departure time for this route is 19:00, with 45% of daily flights taking off in the afternoon.

As of September 2026, 16 flights take off from London Gatwick Airport and land in Belfast each week. The most common flight departure day for this route is Mon, with 44% of weekly flights taking off on this day.