Leighton, 31, spent most of last season in the AHL, but could be a backup to Flyers starter Ilya Bryzgalov this season. Philadelphia's No. 2 last season, Sergei Bobrovsky, was dealt to Columbus during the NHL draft last month.
Originally acquired by the Flyers in December 2009, Leighton has spent part of the last three seasons with Philadelphia. He also appeared in four games for the Flyers during the 2006-07 season. In 32 career regular-season games for Philadelphia, Leighton is 19-7-2 with a 2.68 goals-against average.