The layover was long enough.
6 hours between flights — plenty of time to step outside, get some fresh air, maybe even see the city.
But the plan never happened.
They were stopped before boarding the first flight.
Many travellers believe that leaving the airport during a layover is a simple choice.
If you have time, you can step out.
But leaving the airport is not the same as staying in transit.
It can completely change the requirements for your journey.
When you leave the airport, you are no longer considered a transit passenger.
You are entering the country — even if it’s only for a few hours.
This means different rules can apply depending on:
What seemed like a simple decision can introduce new requirements.
Most travellers plan their layover based on time — not requirements.
They assume:
But once you leave the airport, you are subject to full entry requirements.
And those requirements vary depending on your situation.
Airlines must ensure passengers meet all travel requirements before departure.
If your journey includes plans that require additional authorisation — and you don’t have it — you may not be allowed to board.
This can happen even if:
That’s when airlines deny boarding before departure.
If you’re planning to leave the airport during a layover, it’s important to check your full requirements before you fly.
👉 Check your transit rules here: Transit requirements for your route
👉 Check entry requirements: Entry requirements
👉 Check visa requirements: Visa requirements