Who was the first wild card team to make the Super Bowl?

The Oakland Raiders in Super Bowl XV against the Philadelphia Eagles.

The Dallas Cowboys were a wild card team in 1975 and made it to the Superbowl MAKING THEM THE 1ST TO GET THERE AS A WILDCARD , but they lost thanks to the Fred Swearingen they lost http://en.wikipedia.org/wiki/Fred_Swearingen

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http://en.wikipedia.org/wiki/1975%E2%80%9376_NFL_playoffs

http://www.pro-football-reference.com/teams/dal/1975.htm