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Anak Krakatau Eruption Disrupts Jakarta Flights and Daily Life

Volcanic ash from a days-long eruption suspended more than 200 flights at Soekarno-Hatta and prompted school closures and fishing bans across Banten province.

Qontaktly Editorial·September 6, 2026·3 min read
Key takeaways
  • Mount Anak Krakatau began erupting late Friday; ash reached Jakarta's Soekarno-Hatta Airport by early Sunday, suspending all flights until at least 9:30 a.m. local time.
  • Indonesia's transportation ministry confirmed 209 flights were disrupted, including international routes.
  • Ash columns reached up to 50,000 feet on the Sumatra side; BMKG and BNPB advised masks, eye protection, and reduced outdoor activity.
  • Schools cancelled activities and fishermen halted trips across Banten province due to ash and eye irritation.
  • Authorities confirmed no immediate tsunami risk, though the 2018 Anak Krakatau eruption serves as a reminder of the volcano's destructive potential.

Ash Cloud Grounds Flights at Indonesia's Busiest Airport

Mount Anak Krakatau began erupting late Friday, and by early Sunday the effects had reached Jakarta's Soekarno-Hatta International Airport, where authorities suspended all flight operations because of drifting volcanic ash. The airport announced the halt via Instagram, initially targeting a 5:30 a.m. resumption before extending the suspension to 9:30 a.m. local time (0230 GMT). Indonesia's transportation ministry confirmed that 209 flights were affected, including international services.

The eruption produced ash columns of dramatically different heights on either side of the strait. Indonesia's meteorological agency BMKG recorded plumes rising to 20,000 feet on the Java side, while the Sumatra-facing column reached 50,000 feet, with ashfall reported across parts of Banten province.

Where Anak Krakatau Sits and Why It Commands Attention

Anak Krakatau, whose name translates roughly as "child of Krakatoa," occupies a position roughly midway between Java and Sumatra along the Pacific Ring of Fire. The island formed from the caldera left by the catastrophic 1883 Krakatoa eruption, which killed more than 36,000 people through a series of tsunamis. The volcano's location between two of Indonesia's most populated islands means eruptions carry outsized consequences for transport, fishing, and daily life on both coasts.

Authorities noted there is no immediate tsunami risk from the current activity. That caveat carries weight given that a 2018 eruption at the same volcano triggered a tsunami that killed hundreds and injured many more across Java and Sumatra.

Practical Guidance for Travelers in the Region

Disaster agency BNPB spokesperson Berton Panjaitan urged the public to remain calm but stay alert. Specific advice included wearing masks and eye protection when outdoors, limiting unnecessary time outside, covering water sources to prevent ash contamination, and driving carefully given reduced visibility. Schools in affected areas cancelled activities on Saturday after students and residents reported eye irritation. Fishermen also called off trips, as local outlet Kompas reported.

For travelers currently in Jakarta or planning arrivals through Soekarno-Hatta, the immediate priority is checking with airlines directly. Flight schedules can shift quickly as ash dispersal changes with wind direction, and the eruption was still ongoing at the time of reporting.

Why It Matters for Hosts

Independent accommodation operators near Jakarta, along the Banten coast, or in areas downwind of the Sunda Strait should prepare for a surge in last-minute booking changes and cancellations. Guests stranded by flight suspensions may need extended stays at short notice, while others may cancel entirely out of caution. Having a clear, flexible cancellation policy communicated upfront and keeping direct messaging channels open will help manage expectations on both sides. It is also worth stocking basic supplies such as dust masks and bottled water for guests who may be caught outdoors during ash events, a small gesture that builds real trust.

Details of the eruption and its impact on Soekarno-Hatta Airport were first reported by Business Times BD.

First reported by businesstimes-bd.com.

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