1949–50 was the fourth season of the Western International Hockey League.
Spokane Flyers 38-20-2 .650 Trail Smoke Eaters 20-23-1 .466 Nelson Maple Leafs 19-22-3 .466 Kimberley Dynamiters 15-27-2 .372
Best of 5
* Spokane 11 Trail 3 * Trail 9 Spokane 1 * Spokane 4 Trail 2 * Spokane 2 Trail 1
Spokane Flyers beat Trail Smoke Eaters 3 wins to 1.
Note: Spokane Flyers were not eligible for the Allan Cup so the Trail Smoke Eaters advanced to the final.
Best of 5
* Kimberley 4 Nelson 3 * Kimberley 6 Nelson 2 * Kimberley 5 Nelson 3
Kimberley Dynamiters beat Nelson Maple Leafs 3 wins to none.
Best of 5
* Trail 6 Kimberley 2 * Trail 6 Kimberley 3 * Kimberley 5 Trail 3 * Kimberley 5 Trail 3 * Trail 5 Kimberley 4
Trail Smoke Eaters beat Kimberley Dynamiters 3 wins to 2.
Trail Smoke Eaters advanced to the 1949-50 British Columbia Senior Playoffs.