It's happened twice. Sort of.
Super Bowl XIV was held in the Rose Bowl in Pasadena. The host team was the Los Angeles Rams (although they didn't play their home games at the Rose Bowl), who lost to the Steelers in that game.
Then, Super Bowl XVIX was held at Stanford Stadium in Palo Alto. The host team was the San Francisco 49ers (although they didn't play their home games at Stanford). The Niners beat Denver in that Super Bowl.
Don Shula and Mike Holgrem have both taken two different teams to the Super Bowl.
Kurt Warner
Learn to spell.
None yet.
Kurt Warner
256
No team has ever played in the Super Bowl as an AFC team and NFC team, however ... The AFL-NFL merger took place prior to the 1970 season. At the time, there were 10 teams in the AFL and 16 teams in the NFL. To make an even number of teams in each new conference (AFC and NFC) three teams that played in the NFL and would have become NFC teams became members of the AFC. These teams were the Baltimore Colts, Pittsburgh Steelers, and Cleveland Browns. Four Super Bowls, then known as the AFL-NFL Championship Game, had been played prior to the merger. The Baltimore Colts represented the NFL in Super Bowl III and then in Super Bowl V, the first Super Bowl after the merger, they represented the AFC. So, the Baltimore Colts played in Super Bowls as an NFL team and an AFC team.
no
Giants and Redskins
GIANTS REDSKINS
dalfin boy
The la Liga teams are all based in Spanish cities.