- Langgur Airport, also known as Oesman Sadik Airport, is a domestic airport located in Langgur, a town in the Maluku Islands of Indonesia. The airport is situated on the island of Kei Besar, specifically in the Kei Islands Regency. It is a small airport that primarily serves the local community and connects the islands with other destinations within Indonesia. The airport has a single runway and offers limited facilities for travelers.