Through Week 12 of the 2009 season, that was December 28, 2008 when the Cowboys lost to the Philadelphia Eagles 44-6.
On Dec. 15, 1996, the Dallas Cowboys defeated the New England Patriots 12-6 at Texas Stadium. The Cowboys won the game through four field goals by kicker Chris Boniol.
On Jan. 2, 2011, the Dallas Cowboys defeated the Philadelphia Eagles, 14-13, at Lincoln Financial Field. It was the regular season finale for both teams.
Through the 2008 season, that was December 12, 1999 when the Cowboys defeated the Eagles, 20-10, in Dallas. The Eagles have won 6 straight December games against the Cowboys since then.
The last the the giants beat the Eagles as of today was: November 9th, 2008 Week 10. The Giants were visiting the Eagles and they beat the Eagles 36 to 31
the eagles, sadly, beat the giants on week 11, november 20, 2011.
On October 31, 2010, the Jaguars defeated the Cowboys, 35-17, at Cowboys Stadium.
In 2005.
The last time the Philadelphia Eagles defeated the Steelers was in Philadelphia on September 21, 2008, by the score of 15-6.
The last time was on September 12, 2010 at FedEx Field.
Through September 20, 2015, the Dallas Cowboys lead the all-time series 64 to 49. The total includes regular-season and postseason games.
The Dallas Cowboys have beat the Philadelphia Eagles twice in on season 20 times. Of those 20 times, the Cowboys beat the Eagles twice in 1 season with one regular season loss, one regular season win and one playoff victory.Sep 29, 1968 Sun W Dallas Cowboys @ Philadelphia Eagles 45-13Oct 13, 1968 Sun W Dallas Cowboys Philadelphia Eagles 34-14Oct 5, 1969 Sun W Dallas Cowboys @ Philadelphia Eagles 38-7Oct 19, 1969 Sun W Dallas Cowboys Philadelphia Eagles 49-14Sep 20, 1970 Sun W Dallas Cowboys @ Philadelphia Eagles 17-7Nov 1, 1970 Sun W Dallas Cowboys Philadelphia Eagles 21-17Sep 26, 1971 Sun W Dallas Cowboys @ Philadelphia Eagles 42-7Nov 14, 1971 Sun W Dallas Cowboys Philadelphia Eagles 20-7Sep 17, 1972 Sun W Dallas Cowboys Philadelphia Eagles 28-6Nov 19, 1972 Sun W Dallas Cowboys @ Philadelphia Eagles 28-7Oct 26, 1975 Sun W Dallas Cowboys @ Philadelphia Eagles 20-17Nov 23, 1975 Sun W Dallas Cowboys Philadelphia Eagles 27-17Sep 12, 1976 Sun W Dallas Cowboys Philadelphia Eagles 27-7Dec 5, 1976 Sun W Dallas Cowboys @ Philadelphia Eagles 26-7Oct 23, 1977 Sun W Dallas Cowboys @ Philadelphia Eagles 16-10Dec 4, 1977 Sun W Dallas Cowboys Philadelphia Eagles 24-14Oct 22, 1978 Sun W Dallas Cowboys Philadelphia Eagles 14-7Dec 10, 1978 Sun W Dallas Cowboys @ Philadelphia Eagles 31-13Nov 1, 1981 Sun W Dallas Cowboys @ Philadelphia Eagles 17-14Dec 13, 1981 Sun W Dallas Cowboys Philadelphia Eagles 21-10Oct 16, 1983 Sun W Dallas Cowboys Philadelphia Eagles 37-7Nov 6, 1983 Sun W Dallas Cowboys @ Philadelphia Eagles 27-20Sep 16, 1984 Sun W Dallas Cowboys Philadelphia Eagles 23-17Dec 2, 1984 Sun W Dallas Cowboys @ Philadelphia Eagles 26-10Oct 5, 1992 Mon L Dallas Cowboys @ Philadelphia Eagles 7-31Nov 1, 1992 Sun W Dallas Cowboys Philadelphia Eagles 20-10Jan 10, 1993 Sun W Dallas Cowboys Philadelphia Eagles 34-10Oct 31, 1993 Sun W Dallas Cowboys @ Philadelphia Eagles 23-10Dec 6, 1993 Mon W Dallas Cowboys Philadelphia Eagles 23-17Oct 16, 1994 Sun W Dallas Cowboys Philadelphia Eagles 24-13Dec 4, 1994 Sun W Dallas Cowboys @ Philadelphia Eagles 31-19Nov 6, 1995 Mon W Dallas Cowboys Philadelphia Eagles 34-12Dec 10, 1995 Sun L Dallas Cowboys @ Philadelphia Eagles 17-20Jan 7, 1996 Sun W Dallas Cowboys Philadelphia Eagles 30-11Nov 2, 1998 Mon W Dallas Cowboys @ Philadelphia Eagles 34-0Dec 20, 1998 Sun W Dallas Cowboys Philadelphia Eagles 13-9Oct 9, 2005 Sun W Dallas Cowboys Philadelphia Eagles 33-10Nov 14, 2005 Mon W Dallas Cowboys @ Philadelphia Eagles 21-20Nov 8, 2009 Sun W Dallas Cowboys @ Philadelphia Eagles 20-16Jan 3, 2010 Sun W Dallas Cowboys Philadelphia Eagles 24-0Jan 9, 2010 Sat W Dallas Cowboys Philadelphia Eagles 34-14Nov 11, 2012 Sun W Dallas Cowboys @ Philadelphia Eagles 38-23Dec 2, 2012 Sun W Dallas Cowboys Philadelphia Eagles 38-33Italics denote playoff game
As of April 9th, 2013, the last time the Philadelphia Eagles beat the Arizona Cardinals was on Thanksgiving day, 2008 (11/27/08) beating the Cardinals 48-20.
Based on information found at www.pro-football-reference.com, the last time Dallas beat San Diego was on September 11, 2005, in San Diego. It was the first game of the season, and Dallas won 28-24.
the 2005 superbowl and they beat the philidalpheia eagles.