Taking a red-eye flight or arriving at KLIA Terminal 1 after midnight? Take note that the KLIA Aerotrain will be unavailable from 12:00am to 5:00am between 8 and 17 October 2026 as the airport carries out the first phase of a scheduled software update.

During the five-hour window, passengers travelling between the KLIA Main Terminal Building and Satellite Building (C Gates) will have to use shuttle buses instead. The Aerotrain will continue to operate as usual outside the affected hours.

The software update comes after the Aerotrain completed 20,000 continuous operational hours and is part of efforts to strengthen its operational robustness and support its long-term performance.

KLIA Aerotrain software update has two phases