Kalimantan is the Indonesian name of the island of Borneo. The airport of reference is called Iskandar Airport which is located in the locality of Pangkalan Bun (code PKN). Pangkalan Bun, and nearby is the city of Kumai, from where the Klotoks depart to take the tour of the Sekonyer River to observe the orangutans and wildlife in the Tanjung Puting National Park.
If you are arriving from outside Indonesia, check fares to neighboring countries such as Singapore (SIN), Kuala Lumpur, Malaysia (KUL), and Bangkok, Thailand (BKK). IF you are flying directly to Indonesia, try Jakarta (CGK), Surabaya (SUB), and Denpasar, Bali (DPS).
The best way to check regional flight options and who flies when/where is skyscanner.com shows what airlines fly to your destination, then connects you to the online booking site. There are no direct flights from Bali’s Denpasar airport (DPS), but you can easily (and inexpensively) fly to Surabaya (SUB). Pangaklan Bun (PKN) is in Central Kalimantan in Indonesian, Borneo and it is the closest airport to Kumai, gateway to Tanjung Puting National Park.
Flying with Nam Air, Trigana Air, Wings, Garuda Indonesia. There are daily flights from Jakarta, Surabaya, Semarang, Pontianak, Banjarmasin to Pangkalan Bun.
You can buy ticket from www.ticket.com, www.nusatrip.com, www.booking.com or any travels agent service trusted.