In the ABA, they made it to the playoffs 7 times. In the NBA, they made it to the playoffs 16 times.
Between the 1998 and 2007 seasons, the Vikings made the playoffs 4 times (1998, 1999, 2000, 2004) and the Bears made the playoffs 3 times (2001, 2005, 2006).
They have made the playoffs 25 times with a record of 17-18.
15 times
Since the Dallas Mavericks were established in 1980, they have made it to the playoffs 20 times.
twice
26
5
27 times
Through the 2013 season, the New York Giants made it to the playoffs 31 times.
Through the 2012 season, the San Diego Chargers made the playoffs 17 times.
The Chicago Bulls have made the playoffs 29 out of their 44 seasons.