Siliguri, being a major transport and economic hub, the airport sees thousands of travellers and tourists annually.

[8] Along with the airbase at Hasimara, Alipurduar district; it is responsible for combat air operations over a large area including Northern West Bengal, Sikkim and if needed, Bhutan.

[5] The IAF, which maintains the ATC and runway, permitted night landings by civilian aircraft allowing flights past 6 PM in 2013.

For its growing traffic over the years, in 2022, From 11 to 25 April, the airport was shut down for 14 days to refurbish its sole runway.

[11] The new terminal building, which started its construction in Q4 2024, is expected to be completed by March 2026 with 16 parking bays, 10 aerobridges and a parallel taxiway to the runway.