The Haramain High Speed Railway, is a passenger railway serving the Mecca and Medina provinces in western Saudi Arabia. The 449.2-kilometre-long (279.1 mi) main line directly connects the Islamic holy cities of Mecca and Medina, via Jeddah and the King Abdullah Economic City. A 3.75-kilometre (2.33 mi) branch line provides connections to the King Abdulaziz International Airport in Jeddah. It opened to the public on 11 October 2018.