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The Cowboys first appearance in an NFL championship game was the 1966 season when they played the Green Bay Packers and lost. The Packers went on to defeat the AFL champs Kansas City Chiefs in the first AFL-NFL Championship Game, now known as Super Bowl I.
As of the 2008 season, that would be the Cowboys. The Cowboys have won 8 NFC championships and 5 Super Bowls. The Raiders have won 1 AFL championship, 4 AFC championships, and 3 Super Bowls.
The Dallas Cowboys and the San Francisco 49ers both have 5 Super Bowl Championships. They are tied for second, behind the Steelers 6 Championships.
Cowboys because the Chargers never won a Super Bowl . The Cowboys have won 5 super bowls
Prior to the 'Super Bowl Era', the Steelers won zero championships.
The San Francisco 49ers and Dallas Cowboys both possess five Super Bowl championships.
The Dallas Cowboys won 5 Super Bowls and lost 3.
John Elway led the Broncos to five Super Bowls and two Championships.
Super Bowl Championships (3)Super Bowls XXI, XXV & XLII
The Dallas Cowboys lost Super Bowl V to the Baltimore Colts and Super Bowls X and XIII to the Pittsburgh Steelers.
The Green Bay Packers have 13 NFL Championships, dating back to 1929. Most of these predate the Super Bowl era. The team with the most Super Bowl championships is the Pittsburgh Steelers with six, followed by the San Francisco 49ers and Dallas Cowboys with five. The Packers have four Super Bowl championships.
Through Super Bowl XLII, the Cowboys have not lost back to back Super Bowls. They lost Super Bowl V to the Baltimore Colts and Super Bowls X and XIII to the Pittsburgh Steelers.
Team wise as of right now it's a 3 way tie with the Dallas Cowboys , Pittsburgh Steelers and S. F. 49ers at 5 . But if the Steelers win Super Bowl XLIII then they will have 6 and the most Super Bowls but still not the most NFL Championships.