Anak Krakatau's Ash Forces Closure of Jakarta's Main Airport and Six Others, Stranding 170,000 Travelers

Early Friday night, the restless volcano Anak Krakatau, perched in the Sunda Strait between Java and Sumatra, belched a thick plume of ash that quickly drifted northward. By sunrise on Monday, the fine gray particles were still hanging over Jakarta, Banten and West Java, and even reached the coastal provinces of Lampung, Bengkulu and South Sumatra.

Faced with reduced visibility and safety concerns, the Indonesian Transport Ministry announced that eight airports – the country’s busiest hub, Soekarno‑Hatta International, plus seven regional fields across Java, Bali and Sumatra – would stay closed until at least 9 a.m. local time on Monday. The decision was not taken lightly; the ash posed a real threat to aircraft engines and runway operations.

For travelers, the news was a rude awakening. Roughly 170,000 passengers who had booked flights through the affected airports found themselves suddenly without a way to board, forcing airlines to scramble for alternative arrangements. State‑run operator InJourney Airports designated seven nearby airports as backup sites, but the sheer volume of stranded commuters means many will still miss connections or be forced to re‑book for later dates.

It’s not just the aviation sector feeling the pinch. Schools in the hardest‑hit districts have switched to distance learning, and the National Nutrition Agency confirmed that free meal deliveries to these institutions will be paused until the ash settles and normal operations resume.

Scientists say Anak Krakatau has been active since early July, but the latest explosions are the most vigorous in weeks. The volcano’s ash cloud has already proven its ability to travel far, coating roads, rooftops and, most importantly, the airspace that supports Indonesia’s bustling travel network.

Authorities warn that if the closure extends beyond the morning, the ripple effect could spill over into neighboring countries, disrupting regional flights and cargo movements. For now, travelers are advised to stay tuned to airline updates, keep an eye on weather advisories, and prepare for possible delays or cancellations.