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Jakarta Airports Reopen After Mount Anak Krakatoa Ash Grounds 340,000 Passengers

Five of eight closed airports across Java are back in service, but airlines still face a backlog of stranded travelers from days of disruption.

Qontaktly Editorial·September 8, 2026·3 min read
Key takeaways
  • Soekarno-Hatta International Airport and four other Indonesian airports reopened on Tuesday, September 8, 2026, after days of volcanic ash closures.
  • Mount Anak Krakatoa erupted on Saturday roughly 150 km from Jakarta, triggering the shutdown of eight airports across Java and south Sumatra.
  • Nearly 3,000 flights were disrupted and more than 340,000 passengers were stranded during the closure period.
  • Two of the original eight closed airports remained shut as of Tuesday morning, and airlines still face a large backlog of displaced passengers.
  • Anak Krakatoa has a documented history of dangerous activity, including a 2018 tsunami that killed 429 people.

Five Airports Back Open, Three Days After Krakatoa Eruption

Indonesia's aviation network is slowly returning to normal after one of its most disruptive volcanic events in recent years. Soekarno-Hatta International Airport, the main gateway serving Jakarta, resumed flight operations on Tuesday morning, September 8, 2026, along with four other airports that had been shut since the weekend. The Transport Ministry confirmed the reopenings via Instagram, ending days of uncertainty for hundreds of thousands of travelers.

The crisis began on Saturday when Mount Anak Krakatoa, located roughly 150 kilometers from Jakarta in Lampung province, erupted and sent a large plume of volcanic ash across the region. Within hours, ash was detected in the airspace of eight airports, forcing all of them to halt operations. By Monday, the Transport Ministry reported that nearly 3,000 flights had been disrupted and more than 340,000 passengers left stranded.

Which Airports Reopened and Which Remain Closed

The five airports confirmed as operational again on Tuesday are Soekarno-Hatta International, Halim Perdanakusuma (a smaller Jakarta-area facility serving both civil and military traffic), and Hussein Sastranegara in Bandung, the capital of West Java, among others listed by the Transport Ministry. One small airport in south Sumatra had already resumed operations on Monday morning. That leaves two of the original eight airports still closed as of Tuesday.

Even with the reopenings, the situation at Jakarta's main airport remained complicated. On Monday morning alone, more than 240 domestic and international flights were cancelled or delayed, affecting close to 30,000 passengers at Soekarno-Hatta. Airlines now face the significant logistical challenge of absorbing days of accumulated demand and rerouting passengers who had been waiting at terminals or scrambling for alternative arrangements. The Transport Ministry had designated six alternative airports to handle overflow traffic during the closures.

Anak Krakatoa's History of Disruption

Mount Anak Krakatoa, whose name translates as "Child of Krakatoa," sits in the Sunda Strait between Java and Sumatra. It emerged from the sea in the caldera left by the catastrophic 1883 Krakatoa eruption and has been sporadically active ever since. In 2018, a partial collapse of the volcano triggered a tsunami that killed 429 people and displaced thousands more, underscoring the serious hazard the mountain poses to the surrounding region.

The September 2026 eruption did not produce a tsunami, but its ash cloud demonstrated how quickly a single geological event can cascade into a regional aviation crisis affecting multiple provinces.

Why It Matters for Hosts

Independent accommodation operators in Jakarta, Bandung, and other affected Java destinations should treat this event as a practical reminder to build volcanic disruption into their cancellation and communication policies. When Soekarno-Hatta closes, guests cannot arrive or depart regardless of their plans, and airlines may take several additional days to clear backlogs even after airports reopen. Hosts who proactively contact incoming guests with flexible rebooking options during closures, and who keep a clear force-majeure clause in their booking terms, are far better positioned to maintain guest trust and avoid disputes. Staying subscribed to Transport Ministry social media channels, which provided real-time updates throughout this crisis, is a low-effort way to get early warning of future disruptions.

Details of the airport reopenings and passenger impact figures were first reported by Agence France-Presse and published by the South China Morning Post on September 8, 2026.

First reported by scmp.com.

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