Jakarta Airport Shut as Volcanic Ash Blankets Regional Airspace
A powerful eruption of Anak Krakatau on Sunday has brought air travel across a wide stretch of Southeast Asia to a near-standstill. Soekarno-Hatta International Airport, Jakarta's main international gateway, suspended all flight operations after ash from the Sunda Strait volcano drifted into the Indonesian capital's airspace. By Sunday evening, 467 flight movements had been affected and roughly 150,000 passengers were caught in the disruption.
Two Ash Clouds, Two Directions of Damage
Satellite data tracked two distinct ash plumes from the eruption. One rose to around 20,000 feet and moved northeast, blanketing airspace over Jakarta, Banten and West Java. A second, far larger cloud climbed to approximately 50,000 feet and spread across parts of Sumatra and into the Indian Ocean. Anak Krakatau, which sits in the strait between Java and Sumatra, had been showing elevated activity since the preceding Friday before the stronger eruption early Sunday.
Volcanic ash is particularly hazardous to aircraft because fine silicate particles can erode jet engines, abrade windscreens and clog fuel systems, leaving aviation authorities no safe option but to close affected airspace. In addition to Soekarno-Hatta, Indonesian authorities also closed Halim Perdanakusuma airport in Jakarta and several other facilities as a precaution.
Chaos on the Ground and at Changi
Passengers inside Soekarno-Hatta faced long queues as they scrambled to rebook, claim refunds or identify alternative routes. Some travelers had already cleared immigration and reached departure gates before learning their flights were cancelled. Earlier figures from the airport logged 301 disrupted flights covering 233 domestic, 58 international and 10 cargo services, a number that continued to climb as the closure extended through the day.
The disruption was not contained to Indonesia. Singapore Changi Airport saw Singapore Airlines cancel at least 19 services on Jakarta routes, while Malaysia Airlines also pulled its Jakarta flights. Connections to Kuala Lumpur, Hong Kong, Guangzhou and Doha were among the international services affected. Passengers at Changi reported that airline apps continued to show some flights as confirmed even after cancellation notices had been issued, adding a layer of confusion to an already difficult situation.
Indonesia's transport ministry pointed travelers and airlines toward three potential diversion airports: Kertajati, Ahmad Yani in Semarang and Juanda in Surabaya.
When Flights Resume, Expect More Delays
Indonesian aviation authorities have cautioned that the disruption will not end the moment ash clears. Repositioning aircraft and crews, clearing a backlog of delayed departures and managing reduced terminal capacity will create cascading delays that could stretch well beyond the initial closure. Anak Krakatau remains at Alert Level 3, the second-highest tier in Indonesia's four-level volcanic alert system, and authorities are advising the public to stay at least three kilometers from the crater. Indonesia's disaster mitigation agency has stated there is currently no imminent tsunami threat.
For anyone with travel plans involving Jakarta, the situation remains fluid. Passengers are advised to contact their airline directly before heading to any airport.
Why it matters for hosts
Hotels, guesthouses and villa operators in Jakarta and surrounding West Java should prepare for a surge in stranded guests needing extended stays, as well as inbound travelers whose arrivals will be delayed by days rather than hours. Keeping a clear, updated cancellation and rebooking policy visible on your property's listings and confirming reservations proactively with guests will reduce friction and build goodwill during a period when travelers are already stressed. Operators near alternative diversion airports in Semarang and Surabaya may also see unexpected demand spikes worth monitoring.
Details in this post were first reported by Iuliia Tore at RusTourismNews.
First reported by rustourismnews.com.