Cheap flights from Belfast to the United Kingdom from £16

The cheapest month to fly to United Kingdom from Belfast is in January. Flight prices, which tend to average around £82, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of January, then departing from Belfast during the month March is also very affordable. Most momondo users find prices during this month for around £83.

The cheapest day to depart from Belfast to United Kingdom is on a Thursday. Travellers who choose to depart for United Kingdom on a Thursday will often find tickets for as low as £70. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Belfast to United Kingdom for around £82.

The cheapest time of day to fly to United Kingdom is in the evening when flights can be purchased for as low as £124. Try not to purchase tickets in the afternoon because they tend to be around £661. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Belfast City to London Luton for the best Belfast - United Kingdom flight prices

You are more likely to see cheaper flights to United Kingdom from Belfast when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £137 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Belfast for as low as £106 on momondo.

There are 4 cabin classes available to choose from on Belfast to United Kingdom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

easyJet, British Airways and Ryanair are the top three most popular airlines that fly to United Kingdom from Belfast according to our data. easyJet is the first choice among our users, with 54% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 5 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

Historically, on average around 14% of flights between Belfast and United Kingdom have experienced a delay on any given week. The average delay length over the past 12 months has been 106 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Ryanair have had the fewest delays on this route over the last 12 months, with about 13% of their flights experiencing any sort of delay.

27 flights are operational daily from Belfast to United Kingdom as of August 2026. The most popular departure time for this route is 07:00, with 49% of flights per day taking off at midday.

As of August 2026, 191 flights take off from Belfast and land in United Kingdom each week. The most common flight departure day for this route is Fri, with 28% of weekly flights taking off on this day.