Savatiya (also Kotlas South, Savati, or Savvatiya) (ICAO: ULKS) is an air base in Arkhangelsk Oblast, Russia located 36 km south of Kotlas. It is a small interceptor airfield. It was home to 445 IAP (445th Interceptor Aviation Regiment) which received Tupolev Tu-128 (Fiddler) aircraft in 1967, MiG-25 aircraft by the late 1970s, and MiG-31 by the 1990s. It is also listed as being home to 458 IAP (458th Interceptor Aviation Regiment) which flew MiG-31s in the 1990s.