Jakarta extends airport closures as Anak Krakatau ash spreads

Jakarta’s Soekarno-Hatta International Airport has extended its temporary closure into Sunday night as ash from an ongoing eruption at Anak Krakatau continues to disrupt flights across western Indonesia.

Extended shutdown at Jakarta’s main gateways

Publicly available information from Indonesia’s transport authorities shows that Soekarno-Hatta International Airport, the country’s busiest air hub, has prolonged its suspension of operations in response to volcanic ash from Anak Krakatau drifting across key flight paths. Notices to airmen (NOTAM) indicate multiple revisions to closure times on 6 September 2026, with an initial early-morning shutdown extended several times as ash contamination persisted in the airspace.

English-language coverage of the disruption notes that the first closure window, introduced after ash was detected in the vicinity of the airport overnight, was lengthened from a few hours into a much broader restriction as fresh test data came in. By late afternoon, updated NOTAMs cited by domestic media set Soekarno-Hatta’s closure through the evening, effectively suspending regular commercial movements during one of the airport’s busiest weekend periods.

Official bulletins from the Ministry of Transportation further describe Soekarno-Hatta as one of eight airports placed under extended temporary closure on Sunday. The measure forms part of a wider response to Anak Krakatau’s intensified eruptive phase, which monitoring agencies link to a pattern of increased activity observed since July.

Halim and regional airports also affected

The impact is not limited to Jakarta’s main international gateway. Halim Perdanakusuma Airport, which serves domestic and some regional routes in the capital, has also extended its operational shutdown. Ministry updates summarizing NOTAM data report that Halim’s closure window was pushed back to at least mid-afternoon local time on Sunday, with further assessments scheduled as ash dispersion forecasts evolve.

Airspace management agency information compiled by local outlets indicates that several other airports in western Indonesia are under similar restrictions. Facilities listed in government statements include Radin Inten II in Lampung, Budiarto Curug in Tangerang, Husein Sastranegara in Bandung, Pondok Cabe in South Tangerang, Taufik Kiemas in West Lampung, and Atung Bungsu in Pagar Alam, South Sumatra. Each airport faces varying closure periods depending on ash concentration and its projected movement.

National disaster and transport agencies describe the closures as precautionary steps to safeguard aviation operations from ash-related hazards such as engine damage and reduced visibility. The pattern of staggered extensions reflects an ongoing review process, with meteorological and geological monitoring feeding into short-term decisions on whether to reopen or maintain restrictions.

Hundreds of flights canceled and thousands stranded

Early tallies compiled by the Ministry of Transportation and reported by local newsrooms point to significant disruption for airlines and passengers. A late-afternoon briefing from the transport portfolio states that the temporary closure of eight airports has disrupted more than 1,500 flight movements nationwide, with Soekarno-Hatta alone accounting for nearly a thousand of those cancellations and schedule changes.

Separate coverage by regional wire services highlights preliminary figures of more than 200 affected flights and over 20,000 passengers at Soekarno-Hatta during the initial phases of the shutdown, with those numbers climbing as the closure window was lengthened. As operations remained suspended into Sunday night, aviation analysts quoted in domestic reporting warned of knock-on effects for aircraft rotations, crew scheduling, and terminal capacity once flying resumes.

Passengers transiting through Jakarta and other affected airports are facing long waits, missed connections, and rebooked itineraries. Airlines are adjusting schedules and reallocating aircraft where possible, but constraints at multiple hubs across western Indonesia are limiting options for rapid recovery. Travel industry observers note that delays and cancellations may extend into the coming days even if airports reopen as projected, as carriers work through backlogs.

Anak Krakatau’s intensified activity under scrutiny

Indonesia’s geological monitoring agencies report that Anak Krakatau, located in the Sunda Strait between Java and Sumatra, has shown heightened activity since mid-year, with Sunday’s eruption described in official updates as the strongest episode in the current sequence. Volcanic ash advisories referenced in aviation notices indicate plumes reaching significant altitudes and drifting in directions that intersect heavily used air corridors around Jakarta and southern Sumatra.

Publicly available situation reports from the national disaster management agency emphasize that the current eruptive phase is being closely monitored, with attention focused on ash production and its potential impact on transport rather than immediate large-scale evacuation needs. The agency’s latest communication notes that the volcano’s activity remains dynamic, which may require further operational adjustments for airports if ash clouds continue to form and shift.

Volcanic ash incidents have a long history of affecting aviation in Indonesia and globally, and experts cited in regional commentary point out that even relatively modest eruptions can have outsized impacts when key hubs lie downwind. In this case, Anak Krakatau’s location and prevailing winds have combined to place critical air routes at risk, prompting transport authorities and air-navigation providers to prioritize flight safety over schedule continuity.

Travelers urged to monitor airline and airport updates

With closure timelines repeatedly updated throughout Sunday, published advisories consistently urge travelers to check directly with their airlines and monitor official airport channels before heading to the terminals. Carriers operating through Jakarta have begun issuing rebooking options and travel waivers, though the specific terms vary by airline and route.

Regional travel platforms recommend that passengers with itineraries involving Jakarta, Lampung, Bandung, or secondary airports in western Java and southern Sumatra prepare for potential last-minute changes. Given the cascading nature of aircraft and crew rotations, even flights scheduled beyond the current closure windows may face delays as operations normalize.

Analysts following the situation suggest that the pace of recovery will depend on both the stability of Anak Krakatau’s activity and the speed at which ash disperses from major air corridors. While authorities are signaling an intention to restore operations as soon as conditions allow, the extended closure of Soekarno-Hatta and other airports underscores the volatility of the situation and the likelihood of continued disruption for travelers in the short term.

Kementerian Perhubungan – update on extended airport closures

Directorate General of Civil Aviation – NOTAM summary on Anak Krakatau ash impact

ANTARA News – coverage of extended closures over Anak Krakatau eruption

Associated Press – report on Anak Krakatau eruption and flight disruptions