Jakarta Airport Suspended as Volcanic Ash Blankets the Corridor
A sustained eruption of Mount Anak Krakatau, which began late on 4 September 2026, forced Soekarno-Hatta International Airport to suspend flight operations on the morning of 6 September. Volcanic ash drifted across the Sunda Strait and was detected at the airport in the early hours, triggering a halt that started at 5.30am local time. The suspension was extended twice, with the airport remaining closed until at least 1.30pm local time that day.
By 9.30am, Indonesia's Transportation Ministry confirmed that 209 flights had been affected, including a number of international services. The disruption rippled immediately through the Singapore-Jakarta air corridor, one of Southeast Asia's busiest short-haul routes.
The Scale of Cancellations
Singapore Airlines issued an update at 11.30am on 6 September stating that 19 of its flights between Singapore and Jakarta had been cancelled, among them two that had already been rescheduled earlier. The cancellations covered departures in both directions throughout the day, from a 6.20am Singapore departure through to a 9.55pm service. The airline noted that the situation remained fluid and that additional Singapore-Indonesia flights could be affected.
Scoot, the budget carrier operating under the same parent group, cancelled 12 flights on the same day, spanning morning through late-night departures in both directions. Several Indonesian carriers, including Batik Air, TransNusa, Citilink, and Garuda Indonesia, cancelled early services but retained some later departures on their schedules.
Changi Airport advised all travelers to check directly with their airlines for the latest information.
Ash Reaches 15,000 Metres; Communities Affected on Two Islands
Indonesia's meteorological agency BMKG reported ash rising to 6,000 metres on the Java side of the volcano and a plume reaching up to 15,000 metres on the Sumatra side, affecting parts of Banten province in Java and Lampung province in Sumatra. Residents reported eye irritation from ashfall, several schools cancelled activities, and fishermen suspended trips to sea.
BNPB, Indonesia's disaster mitigation agency, urged the public to wear masks and eye protection, limit outdoor activity, cover water sources, and drive carefully given reduced visibility. The agency had confirmed on 5 September that there was no imminent tsunami risk, a reassurance that carried particular weight given that a 2018 eruption of Anak Krakatau triggered tsunamis that killed hundreds of people on both Java and Sumatra.
Anak Krakatau sits roughly midway between Java and Sumatra in the Sunda Strait. It emerged about a century ago from the caldera left by Krakatoa, the volcano destroyed in 1883 in an eruption that killed more than 36,000 people.
Why It Matters for Hosts
Independent accommodation operators in and around Jakarta should treat volcanic events at Anak Krakatau as a recurring operational risk rather than a rare emergency. When ash reaches the airport, same-day arrivals can vanish entirely and guests already checked in may be unable to depart on schedule. Keeping a clear, up-to-date cancellation and rebooking policy that explicitly references force-majeure natural events, and communicating it proactively during any eruption alert, will reduce friction and protect your reputation. It is also worth maintaining a short list of practical local resources, such as mask suppliers and indoor activity recommendations, that you can share with guests caught mid-stay during ashfall.
The flight cancellation details and eruption data cited in this post were first reported by The Star, drawing on reporting by Reuters and statements from Indonesia's Transportation Ministry, BMKG, and BNPB. This post is published by the Qontaktly travel blog.
First reported by thestar.com.my.