KLIA Aerotrain to resume operations on July 1st 2025

KL International Airport (KLIA) will begin operations of its new Aerotrains on 1 July 2025, marking the completion of a major infrastructure upgrade that began in 2022. The planned three-year project is part of ongoing efforts to enhance service standards and the overall passenger experience.

The KLIA Aerotrain has now entered its final stage of testing, following the successful completion of the critical fault-free run (FFR) and final careful inspection, two major milestones, that confirms the system’s technical reliability and readiness. Conducted under the strict oversight of Agensi Pengangkutan Awam Darat (APAD), the FFR involved a rigorous validation process in which the first train was required to complete 2,000 kilometers of continuous fault-free operations, while the remaining two trains logged 1,000 kilometers each. This ensures that all three trains are fully commissioned and that the system’s built-in redundancy is in place for live operations.

Managing Director of Malaysia Airports, Dato’ Mohd Izani Ghani said that the airport is in the final stretch of preparations, “This includes testing our emergency response plan to ensure we are ready for any eventuality. Our volunteer employees are also participating in live trial runs to simulate passenger movement and help us fine tune operations. The Aerotrain is a complex system that requires seamless integration across multiple components, all of which must meet stringent safety and performance standards set by the regulator.

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KLIA Aerotrain

The modernised Aerotrain, a key feature of KLIA since 1998, now operates with Alstom Innovia APM 300R trainsets. Each three-car unit can carry up to 270 passengers, reaching speeds of 56 kilometres per hour, cutting travel time between terminals to under three minutes.

Mohd Izani stated that the system underwent six months of testing by the Land Public Transport Agency (APAD), ensuring technical and safety compliance. The upgrade aims to reduce service disruptions and enhance passenger comfort.

KLIA Terminal 1 handles over 100,000 passengers daily, with the Aerotrain serving as a crucial link for international transit travellers. MAHB expects the improved system to support KLIA’s recovery ahead of Visit Malaysia Year 2026.

The aerotrain, which has been the backbone of KLIA’s internal transport system since the airport opened in 1998, was suspended in March 2023 following a breakdown.

Loke said the new aerotrain, comprising three carriages, offers high-quality service and can carry up to 270 passengers per trip.

“There are three coaches, and each can accommodate 90 passengers, so one trip can carry 270 people.

“There are two trains operating alternately, and in total, we have three train sets, with two running at all times and one acting as a backup train,” he said.

To ensure the aerotrain remains in good condition, he said the service will operate on both tracks during peak hours and on a single track during off-peak hours.

“We also want to ensure the trains are well maintained in terms of safety, and that is something very important.

“That’s why we have taken time to carry out various tests, including those monitored by the Land Public Transport Agency,” he said.