He will join Philadelphia's AHL affiliate, the Adirondack Phantoms, on an amateur tryout contract for the remainder of the 2012-13 season.
The 24-year-old scored 15 goals and had 32 assists in 35 games during his just-completed senior season at St. Lawrence University. During his four seasons with the Saints, the 5-foot-9, 170-pound center scored 46 goals and added 101 assists for 147 points in 134 games while serving as captain during his junior and senior seasons.
Flanagan was named a finalist for the Hobey Baker Award as the top collegiate player this season.
Prior to his career at St. Lawrence, Flanagan played two seasons for the Cedar Rapids Roughriders of the United States Hockey League, for whom he had 29 goals and 64 assists for 93 points in 117 games.