Cheap flights from the United Kingdom to Belfast from £18

The cheapest month to fly to Belfast from United Kingdom is in November. Flight prices, which tend to average around £67, 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 November, then flying in January is also cheap. Prices for this month can be found on momondo for an average of £67.

The cheapest day to depart on your flight to Belfast is on a Tuesday when prices can be found for as low as £61. This is often the case because there is less demand to fly during this day of the week. Flights from United Kingdom to Belfast on a Friday will generally be more expensive and average around £80. 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 £91. Flights to Belfast are more costly at midday, with an average ticket price of £118. Departure times at midday fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from London Stansted to Belfast Intl for the best United Kingdom - Belfast flight prices

You are more likely to see cheaper flights to Belfast from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Belfast for around £142 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 United Kingdom for as low as £100 on momondo.

Ryanair, easyJet, and British Airways are the most popular carriers operating from United Kingdom to Belfast

easyJet, Aer Lingus and Ryanair are the top three most popular airlines that fly to Belfast from United Kingdom according to our data. easyJet is the first choice among our users, with 61% of people opting to fly with this airline when travelling to Belfast. Keep in mind that there are 7 different airlines that fly to Belfast on a routine basis, so you have a few additional options to choose from.

28 flights are operational daily from United Kingdom to Belfast as of May 2026. The most popular departure time for this route is 19:00, with 37% of flights per day taking off in the afternoon.

As of May 2026, 198 flights take off from United Kingdom and land in Belfast each week. The most common flight departure day for this route is Fri, with 28% of weekly flights taking off on this day.