The airport has extensive general aviation traffic. Of the 17737 landings in 2014, 94% constituted general aviation, according to the Swedish CAA (Transportstyrelsen). This traffic includes hospital flights, flight traning, private flights, corporate flights and air taxi.
A multitude of operators are based att Stockholm-Västerås Airport. Among these are maintenance workshops, helicopter businesses, flight schools, flight clubs and an aviation museum:
Airways Flygutbildning (Airways Flight Training)
Flygande veteraner (Flying veterans)
Hässlö Flygförening (Hässlö Flying Club)
SAS Flygklubb (SAS Flying Club)
Scandinavian Aviation Academy
Scandinavian Helicopter Center
Stockholms Flygklubb (Stockholm Flying Club)
Västerås flygmuseum (Västerås Aviation Museum)
The airport played an important role during the 2014 Västmanland wildfire, serving as a base for water bombers and rescue helicopters.