The Seahawks were the losing team in Super Bowl XL.
This was the only appearance for the Seahawks in a Super Bowl.
2006
never
2006
Seattle Seahawks
1946
The Seattle Seahawks won their first Super Bowl in February of 2014. They defeated the Denver Broncos 43-8. This was their second Super Bowl appearance.
Dallas Cowboys last played in Super Bowl XXX beating the Pittsburgh Steelers. (The Pittsburgh Steelers last played in Super Bowl XL beating the Seattle Seahawks.)
Super Bowl XXXVIII - Carolina Panthers Super Bowl XXXIX - Philadelphia Eagles Super Bowl XL - Seattle Seahawks Super Bowl XLI - Chicago Bears Super Bowl XLII - New England Patriots
The last time the Seattle Seahawks played in the Super Bowl as of this writing was in January 2015, when they played against the New England Patriots and lost 28--24 in a nail-biting game.
The 2006 Indianapolis Colts won Super Bowl XLI. The Colts defeated the Seattle Seahawks 29-17.
Super Bowl XXXIII (33) was the last Super bowl the Denver Broncos won. That Super Bowl occured in 1999.
Super Bowl 26. It their last Super Bowl appearance and they beat the Bills 37 to 24.