 KLIA Ekspres runs non-stop from KL Sentral to KLIA and klia2, skipping the three KLIA Transit stops in between.At KL Sentral, the two platforms of the ERL are accessed from different parts of the station.The KLIA Ekspres side platforms are accessed from the KL City Air Terminal (KL CAT) while the KLIA Transit island platform is accessed from the main Transit Concourse at Level 1.