Do Transit Passengers Need a UK ETA?
It depends on whether you stay airside (within the airport's international transit area) or need to pass through UK immigration. The rules differ based on your nationality and the airport you are transiting through.
Airside Transit: Staying in the Airport
If your connecting flight departs from the same terminal and you do not need to pass through border control, you may be able to transit without a UK ETA. However, this only applies if:
- You remain in the international transit area at all times
- You do not need to collect and re-check your luggage
- You do not need to change terminals
- Your nationality is not on the Direct Airside Transit Visa (DATV) list
When You Definitely Need an ETA for Transit
You will need a UK ETA (or visa) if any of the following apply:
- Changing terminals: London Heathrow has multiple terminals, and moving between them requires passing through immigration
- Collecting luggage: If your bags are not checked through to your final destination, you must enter the UK to collect them
- Overnight layover: If you want to leave the airport and stay in a hotel, you are entering the UK
- Different airports: If you arrive at Heathrow and depart from Gatwick, you must enter the UK
Which UK Airports Allow Airside Transit?
Not all UK airports have international transit facilities. London Heathrow and Manchester are the primary airports that support airside transit. Smaller airports such as Gatwick, Stansted, and Luton generally require all passengers to pass through immigration.
Tips for Transit Passengers
- Check your routing carefully: Confirm whether your connection requires a terminal change
- Ask your airline about luggage: Will your bags be checked through, or do you need to collect them?
- Apply for an ETA if in doubt: It is always safer to have an ETA and not need it than to be turned away at transit
- Allow enough connection time: If you do need to clear immigration, allow at least 3 hours between flights
Planning a Layover? Make It Count
If you have a long layover and hold a valid UK ETA, consider leaving the airport to explore. London is well connected to Heathrow via the Elizabeth Line and Heathrow Express. A 6-hour layover gives you enough time for a quick visit to central London.
Apply Before You Fly
Whether you are transiting or visiting, having your UK ETA sorted in advance means one less thing to worry about on travel day. Apply now and fly with confidence.
