The 29-year-old striker has recently been linked with a move to Turkey after playing just one minute of football since Garde's appointment as Villa boss in November.
Flanagan made his first Liverpool start in 20 months against Stoke City on Tuesday.
The Sunderland man had initially been on loan with the Championship side until next month.
Championship side Derby County will face Manchester United in the FA Cup on Friday evening.
Andros Townsend moved to Newcastle United earlier this week.
Peter Reid says that Crystal Palace manager Alan Pardew is a victim of his own success.
Dimitri Payet has been superb for West Ham United so far this season.
Tommaso Bianchi has left Leeds United for Serie B side Ascoli.
The Terriers gaffer says the player is not yet where he wants him to be.
Tottenham Hotspur head coach Mauricio Pochettino has been linked with Chelsea and Manchester United.