Passing through a UK airport while on the way to another country is called ‘transiting’. Some travellers call it a ‘layover’.
There are 2 types of transiting:
- ‘airside’ - you don’t pass through UK border control before you leave on your connecting journey
- ‘landside’ - you do pass through UK border control, but come back through it and leave the UK within a short amount of time (usually 24 hours)
Find out if you need a UK visa for your layover.