Cheap flights from London to Northern Ireland from £25

In general, January is the cheapest month to fly from London to Northern Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £64. If you’re not able to fly to Northern Ireland in January, then November is your next best option. Flight prices from London to Northern Ireland during November average around £74.

Flying to Northern Ireland from London in the evening is the least expensive time of day to depart. momondo users have found prices as low as £138 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £148 on average. Flights to Northern Ireland from London in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from London Luton to Belfast Intl for the best London - Northern Ireland flight prices

You are more likely to see cheaper flights to Northern Ireland from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Northern Ireland for around £149 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Northern Ireland from London for as low as £104 on momondo.

There are 3 cabin classes available to choose from on London to Northern Ireland 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 Northern Ireland.

easyJet, Ryanair, and British Airways are the most popular carriers operating from London to Northern Ireland

easyJet, British Airways and Ryanair are the top three most popular airlines that fly to Northern Ireland from London according to our data. easyJet is the first choice among our users, with 58% of people opting to fly with this airline when travelling to Northern Ireland. Keep in mind that there are 4 different airlines that fly to Northern Ireland on a routine basis, so you have a few additional options to choose from.

The number of flights available between London and Northern Ireland is 11 per day as of October 2026. The most frequent departure time is 19:00, with 40% of daily flights leaving in the afternoon.

As of October 2026, 82 flights take off from London and land in Northern Ireland each week. The most common flight departure day for this route is Sun, with 73% of weekly flights taking off on this day.