Kuala Lumpur International Airport closed 2025 with 63.3 million passengers — a record, up 10.8% — and the biggest climb into the world’s 20 busiest airports. Here is how the two-terminal machine, Subang’s revival and the VM2026 build-out fit together.
KLIA runs as a twin system: Terminal 1 carries Malaysia Airlines and full-service partners, while Terminal 2 is one of the world’s largest dedicated low-cost terminals — the engine room of AirAsia’s ASEAN network.
December 2025 delivered the airport’s busiest month on record at 6.1 million passengers, with more than a million processed in a single three-day Christmas–New Year stretch.
The December 2025 schedule alone added Xiamen Airlines from Hangzhou, 9 Air, Hainan Airlines from Qionghai, Batik Air services to Osaka and Jakarta, and Sichuan Airlines from Chongqing. Riyadh Air opened three weekly flights in July 2026.
ACI World ranked KLIA 20th globally for 2025 — up six places, the biggest climb in the top 20 — on 63.4 million passengers, as Malaysia chairs ASEAN and runs Visit Malaysia 2026.
Sultan Abdul Aziz Shah Airport (Subang) is the city’s resurgent second field: regional jet and turboprop traffic grew 34.4% in December 2025 to 191,000 passengers, relieving KLIA of short-haul point-to-point demand.
Firefly’s Subang-based network now reaches Singapore, Cebu and secondary Indonesian cities — a downtown-adjacent alternative that suits the Klang Valley’s western business districts.
KLIA is the quiet winner of Southeast Asia’s aviation shuffle: while Bangkok and Singapore defend constrained capacity, Kuala Lumpur added six places in the world ranking in a single year. The formula is unglamorous — AirAsia’s low-cost volume at Terminal 2 plus a recovering national carrier at Terminal 1 — but it is exactly the mix that makes Malaysia the region’s new arrivals champion. Watch the transfer share next: KLIA was built as a hub, and the 2026 schedule finally treats it like one.
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