The Flyers and Sandin mutually agreed to terminate his contract Friday, according to Bill Meltzer of NHL.com.
Sandin was put on waivers, Elliotte Friedman of Sportsnet reports.
The Flyers placed Sandin on waivers Friday, Adam Kimelman of NHL.com reports.
Sandin signed a one-year, two-way contract with Philadelphia on Monday.
Sandin was shifted back to the minors Wednesday.
Sandin was promoted to the active roster prior to Tuesday's matchup with the Islanders.
Sandin was elevated to the taxi squad Monday
Sandin signed a one-year, two-way contract with the Flyers on Monday.
Sandin was reassigned to AHL Lehigh Valley on Wednesday.
Sandin was loaned to HV71 (SHL) for the start of the 2020-21 campaign.