Permits, PPRs and Slot
All non-scheduled flights operating to Vietnam require landing permits. Official permit lead time, per Civil Aviation Authority of Vietnam, is three working days.
Validity of a landing permit is 24 hours for possible delay. Be aware that CAAV is closed on weekends.
Ground handling agent can submit the application and obtain permit on your behalf.
PPRs and Slot
Prior permissions required (PPRs) and Slots are not required for Vietnam. But for some airports that has few parking bays, CAAV may require operator to change the arrival/ departure time in order not to occupy the parking during local commercial aircrafts’ operations at that airport.