Jetstar may put on extra flights from Lombok tomorrow to make up for flights cancelled because volcanic ash hampered air traffic in Indonesia at the weekend.
Jetstar spokesman Michael Scott said Lombok International Airport approved the airline to operate an ad hoc service for flights between Perth and Lombok on Monday, if conditions allowed.
"We’ve put on these extra flights to help get passengers to their destination as soon as possible but they will only operate subject to improving conditions overnight," Mr Scott said.
"At present the ash cloud is still too close to the airport and we’ll need to see the plume move or dissipate before we operate these services.
"We’re also offering passengers the option to transfer on to one of our Perth-Bali / Bali-Perth services should they wish to make their own way across."
Mr Scott said Denpasar-Perth flights were not affected today because the Bali capital was at the edge of the plume.
Flights to and from Darwin were expected to resume today after all flights were grounded by an ash cloud from an Indonesian volcano.
Darwin was cut off to all air services on Saturday as three separate ash plumes billowed from the volcano.
The Sangeang Api volcano erupted continuously after an initial blast on Friday afternoon.
The major plume affecting Australian aviation swept southeast over the west side of the Northern Territory and as far south as Alice Springs.
Emile Jansons, manager of the Darwin Volcanic Ash Advisory Centre, said the plumes affecting Darwin expected to clear today.
He stressed the plumes posed no threat to the health of people on the ground and wouldn't even be noticed by the naked eye.
"When you're as far away as Darwin is it's really not noticeable for people," Mr Jansons said.
"There's no ash falling on the ground, there's no smell of sulphur as the ash is quite high up in the atmosphere.
"So visibly it looks no different to the standard dry seasons we have here which is a little bit of bushfire smoke and a bit of haze in the air."