Thousands of Australian travellers heading to and from Bali face at least another day of disruption as airlines monitor the ash cloud from the Mount Agung volcano.
Scientists say Mount Agung's volcanic activity could escalate further over the coming days, meaning planes could remain grounded, leaving thousands unable to fly in or out of the country.
Denpasar Airport remains closed and Indonesian authorities have ordered 100,000 residents living near the volcano to evacuate the area immediately.
Jetstar cancelled all flights to and from Bali on Tuesday and six on Wednesday.
Virgin Australia cancelled all flights between Bali and Australia on Tuesday and Wednesday.
The fallout from cancellations has impacted an estimated 5000 Jetstar passengers, a spokeswoman for the airline told AAP on Tuesday, while an estimated 2500 Virgin passengers have also been left stranded.
That number could rise with Jetstar acknowledging "further disruptions are possible this week depending on weather conditions".
Affected customers have been given the option of flying to destinations including Phuket in Thailand, Singapore, Fiji or Tokyo at no additional cost.
Other major airlines are monitoring the situation but are unable to fly until the massive ash cloud dissipates.
More than 400 flights to and from Bali have been cancelled as a result of the ash cloud, leaving nearly 60,000 travellers from across the globe stranded on the holiday island.
A boy takes pictures during Mount Agung's eruption seen from Kubu sub-district in Karangasem Regency on Indonesia's resort island of Bali on November 26, 2017. Source: Getty
The disruption also prompted Australian insurers to warn stranded passengers may not be covered even if they had purchased a policy.
A number of companies issued statements saying customers would only be covered if they bought policies up to nine weeks ago, before the Indonesian government issued an alert for the volcano.
Indonesia's Volcano Observatory Notice for Aviation remains at the highest red rating, indicating a further eruption with significant emission of volcanic ash into the atmosphere is imminent.
It is the first eruption of Mount Agung in 54 years.
The last eruption in 1963 killed more than 1000 people and razed several villages.
Thousands of Balinese locals forced from their homes have been left stranded in evacuation centres for months as they await the all-clear to return.
