Transit visas: when a connection needs one
Last reviewed 12 July 2026A transit visa lets you pass through a country on your way somewhere else. Many travellers assume that staying “in the airport” means no visa is needed — but that isn’t always true. Whether you need one depends on the country, your nationality, whether you change terminals or collect bags, and how long you stop. This guide explains the rules so a connection doesn’t derail your trip.
Airside vs. landside transit
The key distinction is whether you cross the border:
- Airside (international) transit — you stay within the international zone, never passing immigration, and connect to an onward international flight. Some countries let many nationalities do this visa-free; others require a specific airport transit visa even airside.
- Landside transit — you pass through immigration — because you must collect and re-check baggage, change airports, leave the terminal, or stay overnight. This almost always requires either a transit visa or the country’s normal entry permission.
When you typically need a transit visa
| Scenario | Border crossed? | Likely needs |
|---|---|---|
| Same airport, airside, bags checked through | No | Often visa-free or an airport transit visa |
| Must collect & re-check bags | Yes | Transit or entry visa |
| Change of airport | Yes | Entry visa/authorisation |
| Overnight layover, leave terminal | Yes | Entry visa/authorisation |
| Long layover, want to sightsee | Yes | Entry visa or transit-exemption scheme |
Useful transit exemptions
Several countries offer generous transit schemes worth knowing:
- China — eligible travellers connecting to a third country can use the 240-hour (10-day) transit exemption. See our China visa guide.
- Schengen area — many nationalities transit airside without an airport transit visa; a specific list of nationalities does need one even airside.
- United States — there is no pure airside transit; everyone clears US immigration, so you need an ESTA or visa even to connect.
- United Kingdom — transit rules depend on nationality and whether you pass the border; an ETA may be required.
How to check your transit rules
- Identify every country you touch, including brief connections.
- For each, check whether your nationality can transit airside visa-free, needs an airport transit visa, or must obtain full entry clearance.
- Confirm whether your baggage is checked through to the final destination — if not, you’ll cross the border.
- Check the official immigration site of each transit country, or ask your airline, well before travel.
Common questions
If I don’t leave the airport, do I still need a visa?
Sometimes. Some countries require an airport transit visa even airside, and the US requires clearance for any connection. Check per country.
Does a long layover let me sightsee?
Only if you can legally enter — via visa-free entry, a transit-exemption scheme, or a transit/entry visa. Otherwise you must stay airside.
Do I need a visa to connect in the US?
Yes — the US has no airside transit, so you need an ESTA or visa even for a short connection.
What if I change airports?
You enter the country and generally need full entry clearance, not just a transit visa.
← All travel guides · Related: China transit exemptions, USA ESTA, UK ETA, visa-free travel.