Mount Sinabung eruption cancels 21 flights at Kualanamu Airport

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Medan, N Sumatra (ANTARA) – PT Angkasa Pura Aviasi, the operator of Kualanamu International Airport, is prioritizing flight safety as operations are adjusted following the eruption of Mount Sinabung in North Sumatra.

“Mount Sinabung’s eruption on Monday, August 31, affected flights to and from Kualanamu,” acting Director of Operations and Services Dedy Sri Cahyono said Tuesday.

Volcanic ash from Sinabung has prompted airlines to adjust their operations, including through flight delays, schedule changes, and cancellations on domestic and international routes.

“Preliminary data show that 21 flights to and from Kualanamu have been canceled, while others face delays and schedule adjustments,” Dedy said.

The number of affected flights remains dynamic, depending on the spread of volcanic ash and individual airlines’ operational decisions.

AirNav Indonesia issued Notice to Airmen A3250/26, announcing the temporary closure of Kualanamu as a precautionary measure to protect flight safety.

“Kualanamu was temporarily closed from 10:50 a.m. to 12:45 p.m. Tuesday because of Sinabung’s volcanic ash,” Dedy said.

PT Angkasa Pura Aviasi and other stakeholders are closely coordinating and monitoring conditions to determine further operational measures. The measures are intended to ensure that all flight operations continue to prioritize safety and security.

“We urge passengers traveling to or from Kualanamu to regularly check their flight status through their airlines’ official information channels,” Dedy said.

Related news: Indonesia’s Mount Sinabung alert raised, faster evacuations ordered

Related news: Geological Agency warns of potential larger Sinabung eruption

Translator: M.Said, Rahmad Nasution
Editor: M Razi Rahman
Copyright © ANTARA 2026

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