The province is served by several airports, the largest being Hang Nadim International Airport in Batam. Originally developed to handle diversions of aircraft from Singapore Changi Airport in case of an emergency, it has sufficient facilities for wide-body aircraft such as Boeing 747s. The airport has the longest runway in Indonesia and the second longest runway in Southeast Asia, after Kuala Lumpur International Airport, at 4,214 metres (13,825 ft) long. The airport serve flights to major Indonesian cities such as Jakarta, Medan, Surabaya and Palembang, as well as some international destinations such as Kuala Lumpur in Malaysia and cities in China such as Shenzhen and Xi'an. Due to its proximity to Singapore, many people who is travelling abroad usually choose to go to Changi Airport in Singapore since it serves more destinations to other countries compared to Hang Nadim International Airport or Soekarno–Hatta International Airport in Jakarta.