- Kaluga International Airport (IATA: KLF, ICAO: UUBS) is a small airport located in the Kaluga Oblast, Russia. It is situated about 15 kilometers southeast of the city of Kaluga. The airport has a single terminal and serves as a hub for regional flights within Russia. It primarily caters to domestic airlines, with limited international flights to neighboring countries. The airport offers basic facilities and services for passengers, including parking, check-in counters, a cafe, and a few retail shops. It is a convenient gateway for travelers visiting the Kaluga region.