Operations at Bali's Ngurah Rai Denpasar International Airport have resumed after a temporary shut down on Friday morning.
Two other nearby airports in East Java will remain closed until 5pm (1900 AEST) local time.
The airport on Indonesia's holiday island of Bali reopened on Friday after ash from a volcano forced a brief closure and the cancellation of more than 300 flights.
Mount Agung rumbled back to life past year and has been erupting periodically since.
A change in wind direction pushed the ash away from Bali's worldwide gateway, allowing flights to resume, an airport official said.
A striking orange-red glow could be seen at the top of Mount Agung's crater after it shot smoke and ash some 2,000 metres (6,500 feet) into the sky Thursday evening.
The volcano's eruption threat reared its head again in November, sparking travel chaos and pounding Bali's lucrative tourism industry and its wider economy.
However, Indonesia's disaster mitigation agency said Agung's danger status had not changed and flights were not in danger.
A 4km exclusion area remains around Mount Agung.
Bali's governor said officials were working on getting visitors on their way.
The volcano, about 70 kilometers (45 miles) northeast of Bali's tourist hotspot of Kuta, last had a major eruption in 1963, killing about 1,100 people.
"We will try our best to find a solution so all visitors can continue their trip", Made Mangku Pastika said. Last year, a series of eruptions from September to December prompted evacuations and flight disruptions, but no loss of life was reported.
Indonesia, an archipelago of more than 250 million people, sits on the Pacific "Ring of Fire" and is prone to earthquakes and volcanic eruptions.