In their 83-year history, the Philadelphia Eagles have never won a Super Bowl. They’ve won NFL Championships in 1948, 1949 and 1960, but they’ve never been able to walk away with the Vince Lombardi Trophy.
The Eagles have appeared in two Super Bowls. In the 1980 season, they made it to Super Bowl XV to face off against the Oakland Raiders (which, to avoid any confusion, actually took place in 1981). The Eagles ended up losing that game 27-10 and it was never really all that close.
Philadelphia also advanced to Super Bowl XXXIX in the 2004 season to take on Tom Brady and the New England Patriots.