In his first season with the Flyers, Barber scored 30 goals and 34 assists and was a contender for the Calder Memorial Trophy for rookie of the year.

In the Flyers' successful 1974 and 1975 Stanley Cup playoffs campaigns, Barber contributed three and six goals respectively.

Behind in the final against Czechoslovakia, Barber scored to send the game into overtime, and an eventual Team Canada victory.

He helped the Flyers reach the Stanley Cup finals in the spring of 1980 with a number of key playoffs goals against the NY Rangers and Minnesota North Stars.

[2] Barber was forced to retire as a player after the 1984–85 season after being unable to return from reconstructive knee surgery in the spring of 1984.

[9] Barber was the director of player personnel for the Tampa Bay Lightning, a position he held from August 2002 to June 2008.

[12] On September 25, 2010, the Bill Barber Sports Complex was opened in his honour in his hometown, Callander, Ontario.