Cheap flights from London to Belfast from €30

The cheapest month to fly to Belfast Intl Airport from London is in January. Flight prices, which tend to average around €64, are often lower during this time because this is during the off-season. The month of November is another great option to travel to Belfast Intl Airport, with average flight prices from London averaging around €76.

The cheapest time of day to fly to Belfast Intl Airport is in the morning when flights can be purchased for as low as €107. Flights in the evening are often more expensive, with an average ticket price of €249.

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

You are more likely to see cheaper flights to Belfast Intl Airport from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Belfast Intl Airport for around €179 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belfast Intl Airport from London for as low as €125 on momondo.

There is only 1 cabin class available to choose from on London to Belfast Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of October 2026, prices for London to Belfast Intl Airport flights are approximately 5% more expensive when compared to flights at the same time last year.

The number of flights available between London and Belfast Intl Airport is 3 per day as of October 2026. The most frequent departure time is 07:00, with 40% of daily flights leaving at midday.

The number of flights available between London and Belfast Intl Airport is 23 per week as of October 2026. The most frequent departure day is Tue, with 52% of weekly flights leaving on this day.