Eruption of Mount Anak Krakatau Impacts 33 Flights at Soekarno-Hatta Airport

Jakarta - The eruption of Mount Anak Krakatau in the Sunda Strait has impacted 33 flights at Soekarno-Hatta International Airport, Tangerang, Banten. This information was announced by the Directorate General of Civil Aviation under the Indonesian Ministry of Transportation, based on monitoring data as of 22:00 WIB, 5 September 2026.

This situation means all prospective passengers including tourists are advised to monitor latest official updates from their airlines, as flight schedules may be adjusted at any time following on-site developments.

Director General of Civil Aviation Lukman F. Laisa confirmed that from the total 33 disrupted flights, international routes recorded 16 cancellations, 7 delays, and 5 full reschedulings.

33 Flights Affected

According to the Directorate General of Civil Aviation, affected international routes cover services to and from Singapore (SIN), Hong Kong (HKG), Sydney (SYD), Seoul/Incheon (ICN), Doha (DOH), Amsterdam (AMS), and Kuala Lumpur (KUL).

For domestic operations, the authority logged 4 flight cancellations and 1 diverted flight. Disrupted domestic routes include services to and from Lampung (TKG), as well as flights bound for Denpasar (DPS) and Surabaya (SUB).

Temporary Closure of Soekarno-Hatta Airport

Lukman explained that under NOTAM Number A3341/26, Soekarno-Hatta International Airport was temporarily closed between 01.30 and 05.30 WIB on Sunday, 6 September 2026 after volcanic ash dispersion from Anak Krakatau was detected.

This decision followed paper test surveys conducted between 00.35 and 01.05 WIB which returned positive confirmation of volcanic ash presence over the airport airspace.

Risk of Cascading Operational Impacts

The Directorate General of Civil Aviation has placed special focus on flight schedule recovery works for 6 September 2026, as this disruption carries high risk of cascading knock-on effects.

These chain impacts may affect aircraft rotation cycles, fleet availability, all subsequent flight schedules, and even terminal passenger handling capacity.

Lukman emphasised that aviation safety remains the absolute top priority for every operational decision, including all schedule adjustments carried out by airline operators.

Travellers Advised To Monitor Flight Status

The civil aviation authority urged all members of the public and passengers travelling through Soekarno-Hatta Airport to continuously check the latest official flight status updates directly from their operating airlines.

Passengers are also requested to plan their travel arrival timelines appropriately, accounting for possible sudden schedule changes due to the ongoing volcanic eruption event.

InJourney Activates Passenger Support Protocols

Meanwhile, InJourney Airports confirmed it has activated full Service Recovery Activation (SRA) procedures at Soekarno-Hatta Airport to assist all passengers affected by the flight disruptions.

Cited by Antara News Agency, InJourney Airports Group Corporate Secretary Head Arie Ahsanurrohim stated that support measures include provision of meals and refreshments, coordinated transfer buses for affected passengers to partner accommodation, and dedicated rest zones inside airport terminals.

InJourney Airports also confirmed SRA protocols will be rolled out at other domestic airports to assist passengers impacted by the cascading disruption originating from Soekarno-Hatta operations.

BMKG Runs 24-Hour Volcanic Ash Monitoring

Indonesia's Meteorology, Climatology and Geophysics Agency (BMKG) has intensified 24/7 monitoring of Anak Krakatau eruption activity, ash dispersion patterns and associated aviation hazards.

Satellite imagery analysis conducted at 08.00 WIB on Sunday 6 September 2026 identified two separate volcanic ash plumes covering areas across Banten, DKI Jakarta, West Java and extending as far as Bengkulu Province.

BMKG recorded volcanic ash is dispersing eastwards up to 20,000 feet altitude, and reaching altitudes of 50,000 feet towards the west of the volcano.

Flight operational status will continue to be adjusted dynamically in line with volcanic ash movement. All travellers are reminded to only use latest official information from airlines and aviation authorities as guidance before departing for any airport.