It was on December 7, 2008 and the Steelers won 20-13.
Super Bowl Championships (5)
1974 (IX), 1975 (X), 1978 (XIII), 1979 (XIV), 2005 (XL)
The Pittsburgh Steelers played the Seattle Seahawks in Super Bowl XL on February 5, 2006.
Once. The Dallas Cowboys defeated the Pittsburgh Steelers in Super Bowl XXX, 27-17. :P:P:P
it was Pittsburgh Steelers at Dallas Cowboys the steelers won Score was: 35-31 steelers in Miami florida
The Pittsburgh Steelers and the Dallas Cowboys played in Super Bowl X. Pittsburgh won 21-17.
The Steelers played the Dallas Cowboys in Super Bowl XXX on Jan 28th, 1996, which they lost to the Cowboys 27 - 17.
Dallas Cowboys and the Pittsburgh Steelers played in Super Bowl XXX, with the Cowboys winning 27-17.
Both the Dallas Cowboys and the Pittsburgh Steelers have appeared in eight Super Bowls.
The Steelers lost in Super Bowl XXX to the Dallas Cowboys, which was played in Tempe, Arizona.
Super Bowl X Pittsburgh Steelers 21 Dallas Cowboys 17
Super Bowl XXX between the Pittsburgh Steelers and Dallas Cowboys was played at Sun Devil Stadium in Tempe, Arizona.
STEELERS SUPER BOWLS: Super Bowl 9 (1975) - Pittsburgh Steelers 16 Minnesota Vikings 6. Super Bowl 10 (1976) - Pittsburgh Steelers 21 Dallas Cowboys 17. Super Bowl 13 (1979) - Pittsburgh Steelers 35 Dallas Cowboys 31. Super Bowl 14 (1980) - Pittsburgh Steelers 31 Los Angeles Rams 19. Super Bowl 30 (1996) - Pittsburgh Steelers 17 Dallas Cowboys 27. Super Bowl 40 (2006) - Pittsburgh Steelers 21 Seattle Seahawks 10. Super Bowl 43 (2009) - Pittsburgh Steelers 27 Arizona Cardinals 23. Super Bowl 45 (2011) - Pittsburgh Steelers 25 Green Bay Packers 31.
The third Super Bowl for the Steelers was Super Bowl XIII. The Steelers defeated the Dallas Cowboys on January 21, 1979, by the score of 35-31.