The Express Rail Link is a standard gauge and electrified airport rail link in Malaysia that connects the Kuala Lumpur International Airport (KLIA) with the Kuala Lumpur Sentral (KL Sentral) transportation hub, 57 kilometres apart. The line is utilised by two different train services operated by Express Rail Link Sendirian Berhad:
The trains run at a maximum commercial speed at 160km/h, the fastest speed for rail travel in Malaysia. Because it achieves a minimal speed requirement for a high-speed rail, the ERL is regarded a high-speed rail service by Malaysian standards.
ERL operator YTL has proposed extending the line all the way to Singapore and as of June 2007, the Malaysian Government said the feasibility of the proposal was still being studied. The RM8 billion project would slash rail travel time from more than 8 hours to about 90 minutes.