Cheap flights from London to Belfast from $34

The month of January is, on average, the cheapest month to fly to Belfast Intl Airport from London, with most prices found around $71. If you’re not able to fly to Belfast Intl Airport in January, then November is your next best option. Flight prices from London to Belfast Intl Airport during November average around $85.

The cheapest day to depart on your flight to Belfast Intl Airport is on a Monday when prices can be found for as low as $73. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from London to Belfast Intl Airport for around $143.

In the morning is the cheapest time of day to fly from London to Belfast Intl Airport when you can find flight prices for as low as $146. Flying to Belfast Intl Airport in the morning is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Belfast Intl Airport is at noon when prices are around $209.

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 $200 when searching weeks out. 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 $139 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.

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

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.

Ryanair and easyJet are the most popular carriers operating from London to Belfast Intl

easyJet, British Airways and Ryanair are the top three most popular airlines that fly to Belfast Intl Airport from London according to our data. easyJet is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Belfast Intl Airport. Keep in mind that there are 3 different airlines that fly to Belfast Intl Airport on a routine basis, so you have a few additional options to choose from.

As of October 2026, there are 3 flights per day flying from London to Belfast Intl Airport. The most common time of day flights depart is 7:00AM, with 40% of flights taking off at noon.

23 flights are operational weekly from London to Belfast Intl Airport as of October 2026. The most popular departure day for this route is Tue, with 52% of flights per week taking off on this day.