Sultan Aji Muhammad Sulaiman Airport, formerly named Sepinggan Airport, is the principal airport serving East Kalimantan area on the island of Kalimantan, Indonesia. The airport began its new operational phase in 1997, with new building and runway structure, replacing old structure on the same site.
With numerous buildings located around the airport and its only runway jutting out into the settlement, landings at the airport are dramatic to experience and technically demanding for pilots.
Sultan Aji Muhammad Sulaiman Airport is the 6th busiest airport in Indonesia and the busiest airport in Kalimantan and Borneo with 7.1 million passenger traffic in 2013. From October to December 2014, Sultan Aji Muhammad Sulaiman Airport becomes the world's 16th best in Airport Service Quality or the best in Southeast Asia by Airport Council International survey among 79 airports with passengers capacity between 5-15 million a year.