Soekarno-Hatta International Airport in Jakarta, Indonesia, was temporarily closed for four hours from 1:30 AM to 5:30 AM WIB on Sunday, September 6, 2026, due to volcanic ash detected from the eruption of Mount Anak Krakatau. The Directorate General of Air Transportation confirmed the closure via NOTAM Number A3341/26 after paper tests between 00:35 WIB and 01:05 WIB indicated the presence of volcanic ash. This closure led to widespread disruptions for both domestic and international air travel.
According to monitoring data as of September 5, 2026, at 10:00 PM WIB, a total of 33 flights at Soekarno-Hatta Airport were affected. International flights saw 16 cancellations, 7 delays, and 5 reschedules, impacting routes to and from major cities such as Singapore, Hong Kong, Sydney, Seoul/Incheon, Doha, Amsterdam, and Kuala Lumpur. Domestically, there were 4 cancellations and 1 flight diversion, affecting routes to and from Lampung, as well as flights to Denpasar and Surabaya. One specific cancellation mentioned was Lion Air flight JT 242 from Soekarno-Hatta to Lampung.
Radin Inten II International Airport in Lampung also experienced flight disruptions. Several flights were delayed or canceled on September 5 and 6, 2026, due to the volcanic ash. Affected flights included Garuda Indonesia flight 073 (Lampung-Jakarta), Citilink Indonesia flights 904 (Jakarta-Lampung) and 905 (Lampung-Jakarta), and TransNusa flights 5205 (Jakarta-Lampung) and 5206 (Lampung-Jakarta). Authorities prioritized safety, urging passengers to check with their airlines for updated flight statuses and to anticipate further schedule adjustments.
The Directorate General of Air Transportation is continuously monitoring the situation and coordinating with airlines, airport operators, air navigation services, and the Meteorology, Climatology, and Geophysics Agency (BMKG) to manage the impact of the volcanic eruption. The focus remains on ensuring the safety of flights and passengers, while also planning for the recovery of flight schedules on September 6, 2026, to mitigate cascading effects on aircraft rotation, fleet availability, subsequent flights, and terminal capacity.
