Do Vietnam immigration officers require proof of onward travel at the border?

When entering Vietnam by bus from Cambodia, border officers may ask for proof of onward travel. Showing a bus ticket from Vietnam back to Cambodia a month later is accepted as sufficient proof of exit.

The onward travel requirement in Vietnam is similar to Thailand: proof of exit may be requested at entry. For land border crossings, a bus ticket to a third country is an acceptable document.

When flying into Vietnam, the practice is similar to Thailand — immigration may ask for a return or onward ticket out of Vietnam to any destination.