Bennion progressed through Wrexham's youth setup and signed as a part-time professional with the club in September 1959.
[2] He went on to make more than 50 league appearances over the next four years but his opportunities became limited after the signing of Arfon Griffiths in 1962.
[2] The following season saw him agree to join Halifax Town, but the move collapsed and Stan joined Chester in time for the 1963–64 season as part of a swap deal with Bill Myerscough.
[4] He also scored both goals when captain of the Chester side that beat Tranmere Rovers 2–0 to win the Cheshire Bowl.
[5] Bennion then dropped into non-league football, playing for New Brighton until 1970 and then spending four years with Rhyl.