Since 1997, the Philadelphia Eagles have the same number of Super Bowl appearances as the Dallas Cowboys have number of playoff wins. Four.
Cowboys playoff Wins:
2009 Wild Card against Eagles
2014 Wild Card against Lions
2018 Wild Card against Seahawks
2022 Wild Card against Buccaneers
Eagles Super Bowl Appearances:
XXXIX against Patriots
LII against Patriots
LVII against Chiefs
LIX against Chiefs