Can my valid visa get cancelled at the airport?

Yes, a visa can be cancelled at the Australian airport, and in most cases, this means that the traveler has not been immigration cleared. Immigration clearance occurs after a traveler has passed through border control and customs and if your visa is cancelled at this point, you will not be allowed to officially enter Australia.

If your visa is cancelled at the airport, it means that you have not been cleared for entry into Australia, and you may be detained, questioned, and deported. The reasons can range from breaching visa conditions, providing false information, security concerns, to undeclared biosecurity risks. The cancellation process is typically swift, and re-entry may be barred depending on the circumstances.