Some travellers are being warned it could be days until new flights are available after the eruption of a volcano at a holiday island in Indonesia forced the cancellation of dozens of flights.

Hundreds of Australian travellers have been left in the lurch after the eruption of Mount Lewotobi Laki-Laki near Bali caused an 18-kilometre volcanic ash column on Monday, prompting the cancellation of flights in and out of the tourist hotspot.

Jetstar, Virgin and AirAsia have cancelled all their flights, with limited flights out of the country still operating through Qantas and Garuda.

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Volcanic ash has a significant risk of causing aeroplane engine damage, and has the potential to cause the engine to stall or fail, with the duration of ash’s impact dependent on the eruption’s size and the prevailing winds.

Frustrated travellers at Denpasar Airport have been forced to find alternative accommodation and are unsure of when they’ll be able to return to Australia.

Some travellers have been told it could be days until replacement flights are sent.

“Cancelled for tonight, meant to go to Rockhampton, Australia, but now I’ve got to wait two days,” one passenger told Sunrise.

“So the next flight is two days’ time.”

Other travellers saw the lighter side of being stuck on a holiday island.

“I’m very upset, we didn’t realise we would have another day on the beach,” one woman said.

“Very, very sad, yeah, but hopefully we can get home.”

Qantas said it was monitoring the situation closely and that “safety is always our top priority”.

“We will contact customers directly if their flight is disrupted,” a spokesperson told www.20304050.best in a statement.

Some Virgin services have also been cancelled.

Smart traveller is warning passengers of cancelled flights.

“If your flight is affected, contact your airline and insurance provider for alternative travel and accommodation arrangements.”

Mount Lewotobi Laki-Laki, located at the southeastern part of the island of Flores, last erupted on June 17.

The mountain also erupted in November, killing nine people and injuring dozens.

There have been no reported injuries or casualties from Monday’s eruption.