Cheap flights from London to Belfast from £23

The month of January is, on average, the cheapest month to fly to Belfast City Airport from London, with most prices found around £67. If you aren’t able to travel to Belfast City Airport 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 £78.

Our data shows that Monday is the least expensive day to fly to Belfast City Airport. Tickets to fly out on this day can be as low as £108. Flights from London to Belfast City Airport on a Sunday will generally be more expensive and average around £146. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Flying to Belfast City Airport from London in the morning is the least expensive time of day to depart. momondo users have found prices as low as £121 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to Belfast City Airport is in the evening when prices are around £138.

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

You are more likely to see cheaper flights to Belfast City Airport from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Belfast City Airport for around £132 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belfast City Airport from London for as low as £91 on momondo.

There are 3 cabin classes available to choose from on London to Belfast City flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between London to Belfast City Airport.

As of April 2026, prices for London to Belfast City Airport flights are approximately 62% more expensive when compared to flights at the same time last year.

As of April 2026, there are 11 flights per day flying from London to Belfast City Airport. The most common time of day flights depart is 12:00, with 61% of flights taking off in the afternoon.

83 flights are operational weekly from London to Belfast City Airport as of April 2026. The most popular departure day for this route is Thu, with 43% of flights per week taking off on this day.