Do I need proof of onward travel when flying from Bangkok to Nha Trang, Vietnam?

On an Azimuth flight from Bangkok to Nha Trang, passengers were not asked for an onward ticket. They chose not to make a tentative booking and completed check-in without proof of departure from Vietnam.

A traveler arriving in Nha Trang two days earlier was not asked for an onward ticket, but immigration did ask to see their visa. Keep your Vietnam e-visa on your phone and save an offline copy.

For a Bangkok–Nha Trang flight, check-in staff required a traveler to buy a return ticket at the airport before allowing boarding. Arrange a genuine confirmed ticket out of Vietnam in advance to avoid an expensive last-minute purchase.

On another recent Bangkok-to-Nha Trang departure, a passenger was denied boarding until they showed proof of onward travel, and two separate check-in desks applied the same rule. The airline can enforce this before you even arrive in Vietnam.