Use 30-day ordinary visa-free when
- Your passport is covered by China's unilateral or mutual ordinary visa-free policy.
- Your mainland China stay fits inside the allowed ordinary visa-free window.
- Your route is a simple round trip, such as London → Shanghai → London.
- You do not want to prove an onward third-country or third-region ticket at airline check-in.
Use 240h transit when
- Your passport is on the 55-country 240h transit list but has no ordinary visa-free entry.
- Your route is A → mainland China → B, with A and B being different countries or regions.
- Your China entry/exit ports and planned stay area fit the official 65-port and 24-region table.
- Your stay is within the 240-hour transit window.
Where travelers get it wrong
The most common mistake is using the 240h mental model when the passport already qualifies for ordinary visa-free entry. That creates artificial routing anxiety: travelers try to force a third-country onward leg even though ordinary visa-free entry would allow a normal round trip.
The reverse mistake is worse: a traveler without ordinary visa-free entry books a round trip and assumes the 240-hour number alone is enough. It is not. For 240h transit, the route shape matters as much as the stay duration.
What to do after choosing
If the checker recommends ordinary visa-free entry, continue to the Digital Arrival Card guide and save your first-night hotel address. If it recommends 240h transit, generate the Boarding Kit before departure so the airline counter can verify your route quickly.