Anak Krakatau ash cloud grounds flights at eight Indonesian airports

Volcanic ash from Mount Anak Krakatau spread across the region and grounded flights at eight airports in Indonesia. Transportation Minister Dudy Purwagandhi confirmed the temporary suspension of operations on September 6, 2026. Jakarta's Soekarno-Hatta International Airport was among those closed.

The Center for Volcanology and Geological Hazard Mitigation said the eruption began at 23:07 on September 4 and ended at 00:04 on September 6, with two further eruptions later that day. The Meteorology, Climatology, and Geophysics Agency reported ash moving up to 20,000 feet to the east and 50,000 feet to the west. AirNav Indonesia issued NOTAMs closing airspace as a precaution.

The eight affected airports were Soekarno Hatta, Halim Perdanakusuma, Radin Inten II, Husein Sastranegara, Budiarto Curug, Pondok Cabe, Taufik Kiemas, and Atung Bungsu. Two additional airports were closed after a change in wind direction.

The minister instructed airlines to give passengers clear information about schedule changes, cancellations, and diversions, and to uphold passenger rights. Garuda Indonesia said flights to and from Jakarta were being adjusted due to the ash.