Anak Krakatau ash strands 270,000 as Indonesia shuts airports

Volcanic ash from Indonesia’s Anak Krakatau has forced airport closures across western Indonesia for a second day, disrupting thousands of flights and stranding an estimated 270,000 passengers as aviation authorities keep major hubs, including Jakarta, under tight restrictions.

Second day of shutdowns hits Jakarta and regional hubs

Indonesia’s Transport Ministry and air navigation authorities have extended closures at several airports into Monday, September 7, after ash from Anak Krakatau continued to drift over key air corridors. Reports indicate that a total of seven airports remain shut or severely restricted, including Jakarta’s Soekarno-Hatta and Halim Perdanakusuma, along with facilities in Bandung, Lampung and other western regions.

According to publicly available figures compiled on Monday, more than 2,300 flights have been cancelled, delayed or diverted since disruptions began on Saturday, September 5. The cumulative impact has now reached roughly 270,000 affected passengers as airlines suspend operations on safety grounds and rework schedules for domestic and international routes.

Local and regional coverage notes that Soekarno-Hatta, Indonesia’s main international gateway, has been at the center of the disruption, with hundreds of departures and arrivals suspended over the weekend and into the new week. Airport operator data and ministry statements cited in regional media describe crowded terminals, long queues at airline counters and passengers facing wait times that stretch into many hours as they try to rebook journeys.

Passengers stranded as airlines juggle cancellations and diversions

Travelers across Indonesia and neighboring countries are encountering widespread knock-on effects as airlines adjust to constantly changing ash forecasts. Coverage from Indonesian and international outlets describes passengers sleeping in terminal seating areas, lining up at customer service desks for refunds or new tickets, and monitoring departure boards dominated by cancellations for a second straight day.

Data shared by Indonesia’s Transport Ministry and aviation agencies, cited in regional news reports, indicates that thousands of flights have been affected in total, with some carriers diverting services to alternative hubs in Southeast Asia or cancelling Jakarta-bound operations outright. Reports from Soekarno-Hatta show that more than 240 flights were cancelled or delayed there on Monday morning alone, on top of extensive weekend disruption.

Travel industry coverage notes that the shutdowns are rippling across the wider network, as aircraft and crew are left out of position and airlines struggle to restore regular rotations. Some flights have been pushed back by at least a day, and in many cases seats on near-term alternatives are scarce, particularly on heavily used regional links between Indonesia, Singapore, Malaysia and Australia.

Safety rules drive conservative response to volcanic ash

Aviation experts and Indonesia’s air navigation service have emphasized in public statements and advisories that volcanic ash poses a significant hazard to aircraft engines and navigation systems, leading to a cautious operational stance whenever ash is detected in controlled airspace. AirNav Indonesia has reported positive ash tests in the skies above Jakarta and several other cities, prompting authorities to keep airspace closures in place until at least Monday evening.

Published coverage explains that ash particles can melt inside jet engines, potentially causing power loss and damage, while also reducing visibility and affecting instruments. As a result, international safety guidelines call for strict avoidance of ash clouds, even when eruptions are relatively modest and occur far from major population centers.

Reports from Indonesia’s meteorology and volcanology services indicate that Anak Krakatau has produced several eruptions since late last week, sending ash clouds to cruising altitudes used by commercial jets and pushing plumes across the Sunda Strait toward the capital region. While monitoring agencies suggest that activity eased slightly on Monday, dispersion models still show ash lingering along key flight paths, keeping restrictions in place even as the volcano’s intensity fluctuates.

Anak Krakatau’s history and regional risk

Anak Krakatau, located in the Sunda Strait between Java and Sumatra, is part of one of the world’s most closely watched volcanic systems. The current cone emerged from the sea in the 1920s within the caldera left by the catastrophic 1883 Krakatau eruption, which triggered tsunamis and a period of global climatic cooling. Since then, Anak Krakatau has erupted periodically, and a 2018 event caused a partial flank collapse and deadly tsunami along nearby coasts.

Current reporting stresses that the latest activity is primarily an aviation and air-quality concern, rather than a broader evacuation-triggering crisis. The bulk of the fallout is occurring over the ocean and high in the atmosphere, but ash drift over the greater Jakarta area has been sufficient to disrupt flight operations and prompt health advisories for vulnerable residents.

Indonesia sits on the seismically active Pacific Ring of Fire and manages dozens of active volcanoes. Analysts note that while airport closures of this scale are not common, the country has faced similar disruptions in the past, particularly in connection with eruptions in Java and Bali that affected heavily traveled tourism routes.

What travelers should expect in the coming days

As of Monday afternoon local time, there is no firm timetable for a full resumption of normal operations. Transport Ministry briefings and airline notices referenced in regional media indicate that the status of each airport is being reviewed periodically based on ash dispersion maps, satellite observations and pilot reports, with reopening decisions expected to be gradual and subject to change.

Travel advisories circulating through airlines and consular channels recommend that passengers with flights routed through Jakarta and other affected airports monitor airline apps, websites and email notifications rather than proceeding directly to the terminal. Rebooking and refund policies vary by carrier, but many are allowing fee waivers or flexible changes for trips scheduled during the ash disruption window.

Industry observers suggest that even once airspace restrictions are lifted, travelers should anticipate several days of residual disruption while airlines reposition aircraft, clear backlogs and restore regular schedules. For now, publicly available information points to safety-driven caution as the priority, with tens of thousands of passengers likely to remain stranded or delayed until Anak Krakatau’s ash cloud dissipates from Indonesia’s busiest flight corridors.

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Türkiye Today: Volcanic eruption strands 270,000 passengers, delays Indonesian airports