Anak Krakatau Ash Spread Triggers Closure of Soekarno-Hatta Airport, 33 Flights Affected
Soekarno-Hatta International Airport was temporarily closed on Sunday (6/9/2026) from 01:30 WIB to 05:30 WIB following the spread of volcanic ash from Mount Anak Krakatau. This action was based on NOTAM Number A3341/26, issued by the Directorate General of Civil Aviation, Ministry of Transportation.
“This was carried out as a follow-up to the results of a paper test conducted on Sunday (6/9/2026) between 00:35 WIB and 01:05 WIB, which showed positive indications of volcanic ash distribution at Soekarno-Hatta International Airport,” stated Director General of Civil Aviation, Lukman F. Laisa, in a statement in Jakarta on Sunday.
Based on monitoring data as of 5 September 2026, at 22:00 WIB, 33 flights at Soekarno-Hatta International Airport were affected. Regarding international flights, there were 16 cancellations, seven delays, and five rescheduled flights.
The affected flight routes include services to and from Singapore (SIN), Hong Kong (HKG), Sydney (SYD), Seoul/Incheon (ICN), Doha (DOH), Amsterdam (AMS), and Kuala Lumpur (KUL). For domestic flights, there were four cancellations and one diverted flight.
The affected domestic routes include flights to and from Lampung (TKG), as well as flights heading to Denpasar (DPS) and Surabaya (SUB).
The Directorate General of Civil Aviation is paying special attention to the recovery of flight schedules on 6 September 2026, considering the potential cascading impact on aircraft rotation, fleet availability, subsequent flight schedules, and terminal capacity.
“Safety remains the top priority in every operational decision, including the flight schedule adjustments made by airlines. Operational flight adjustments will continue to be carried out dynamically based on developments in the field,” said Lukman.
He stated that his department will continue to conduct intensive monitoring and coordination with flight operators, airport managers, air navigation services, and the BMKG (Meteorology, Climatology, and Geophysical Agency) regarding the impact of Mount Anak Krakatau’s eruption activity on flight operations, particularly at Soekarno-Hatta International Airport (CGK).
The Directorate General of Civil Aviation advises the public and prospective passengers travelling through Soekarno-Hatta International Airport to monitor the latest information from airlines regarding their flight status and to plan travel times considering the possibility of schedule changes.
The Directorate General of Civil Aviation will continue to monitor the situation alongside flight operators, airport managers, air navigation services, BMKG, and other relevant parties, and will provide updated information should there be any significant changes to flight operations.