Cheap flights from London to Belfast

from as little as £134

4 nights in Belfast, departing London Heathrow on 01 / Jan / 2025 with British Airways (price found 14 hours ago)

Subject to availability, prices correct of the last 24 hours

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The London / Belfast route

All 561 km of it

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Belfast flight facts

What you need to know

Alternative flights from the UK to Belfast

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Alternative flights from London

You might find cheaper flights nearby

01 / Jan / 2025 is currently the lowest priced day of the year to fly the London/Belfast route. There are around 244 flights on any given week from the UK to Belfast and the cheapest month to fly right now is January.

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Min / Max Temperature (°C)

2 °C


10 °C


20 °C

Rainfall (mm)

50 mm


72.5 mm


90 mm

Key facts about Belfast

How to get cheap flights from London to Belfast

Tips and advice from our flight experts

We’ve scanned all 244 weekly flights to or via Belfast from London, across two airlines. With all your flight options in one place, it's easy to compare times and prices, to find the best one for you. Plus, Netflights is completely free to use.

There are actually one airports in Belfast. We've scanned all of the flights into Belfast and, on average, the cheapest airport to fly into is George Best Belfast City Airport (BHD). Look out for flights with British Airways too, as they tend to have the cheapest prices.

The cheapest airport to fly from is London Heathrow, but we recommend booking in advance to get a good price.

The flight to Belfast from London takes roughly 1 hrs 55 mins. If you need somewhere to stay, take a look at our hotel options – you can sometimes save even more when you book your accommodation with your flight. Even if you don’t book, the prices will give you a good indication of how much hotels cost in United Kingdom.

Other popular destinations near Belfast

Where other people are flying to

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