They are members of the Coastal Conference of the British Columbia Hockey League (BCHL).

The franchise, originally the Quesnel Millionaires, started out in the Peace Cariboo Junior Hockey League (PCJHL) in 1975.

On May 9, 2011, the BCHL approved the sale of the Millionaires to the Chiefs Development Group in Chilliwack.

On May 20, 2018, the Chiefs won their first RBC Cup, 4–2 over the Wellington Dukes while hosting the tournament.

Note: GP = Games Played, W = Wins, L = Losses, T = Ties, OTL = Overtime Losses, GF = Goals for, GA = Goals against, Pts = Points Western Canada Championships: BCHL – AJHL – SJHL – MJHL – HostRound-robin play with 1st vs. 2nd - winner advance to National Championship & loser to runner-up game3rd vs. 4th in 2nd semifinal winner to runner-up game loser eliminated.Runner-up game determines 2nd representative to National Championship.WCC competition began after the 2013 season.