Hengki added that his party asks passengers to update the contact number or e-mail address listed on the ticket, so that the Garuda Indonesia can contact the passengers in case there is a change in flight schedule.
Mount Agung's alert status was raised to the highest in September following a dramatic increase in tremors from the volcano, which doubled the exclusion zone around the crater and prompted more than 140,000 people to leave the area.
After Saturday's eruption, which produced a bigger ash cloud than the initial one on Tuesday, Singapore updated its travel advisory for the island, warning that ash clouds could "severely disrupt air travel".
They were now magmatic eruptions, the agency said, which means lava has forced its way to the surface.
On Saturday, four airlines made a decision to ground at least 16 of their flights because of the increasing activity of the volcano in the afternoon.
"It may take about a month for an explosive eruption to occur", Suantika said.
The emissions are the second this week alone igniting warnings from experts that a more powerful eruption is imminent
The National Agency for Disaster Management issued a Level 3 alert, recommending no public activities within 6 to 7.5 kilometers (3.5 to 4.5 miles) from the peak. The alert was lowered on October 29 after a decrease in activity. It is still gushing and the dark grey clouds are moving toward the neighbouring island of Lombok, a direction that is away from Bali's airport, where almost all scheduled domestic and worldwide flights were continuing Sunday.
At Ngurah Rai, Bali's main airport, flight cancellations stranded roughly 7,000 domestic and worldwide passengers, according to the airport's latest report.
"The airport still operates normally".
Ayu Mas Sumantri, a top official of Karangasem Regency where the volcano is located, called on the people of Bali "not to be afraid and panic". Around 25,000 people have been evacuated from the "danger zone" on the slopes of Agung to hundreds of refuge shelters.
"Mount Agung has erupted 18 times and we are used to such a condition", he said, while still urging people to prepare backpacks containing masks, flashlights, jackets and glasses.