Airport spokeswoman Traci Bednard said the flight, operated by Jazz Aviation, had been diverted to Edmonton before the incident.
Jazz said the accident occurred at about 8:30 p.m. local time (0330 GMT Friday). The flight, AC8481, was en route to Grande Prairie from Calgary, carrying 71 passengers and four crew members.
All other passengers and crew members were evaluated by medical responders on the scene and released. Jazz could not immediately say how serious the injuries were.
Flight operations at the airport were normal without any delays, said Bednard.
The Transportation Safety Board of Canada said it was deploying a team of investigators to assess the landing incident.
Chorus Aviation Inc.'s Jazz Aviation was operating the Bombardier Inc Q400 turboprop plane under a deal with Air Canada, Canada's largest airline. REUTERS