A number of flights in and out of Bali have been cancelled due to the ash threat from the Mount Raung volcano in Indonesia.

Virgin Australia diverted four flights during the day on Saturday and cancelled six flights scheduled for Saturday night.

A number of Virgin Australia flights to Bali have been cancelled. Credit:Glenn Hunt

Virgin Australia spokesman Luke O'Donnell said four flights on Sunday had been cancelled.

"Our team of meteorologists are continuing to monitor the situation, in consultation with the Volcanic Ash Advisory Centre (VAAC)," he said.