Delta Connection (SkyWest Airlines) Bombardier CRJ-200ER at Calgary International Airport, YYC.
SkyWest Airlines, Inc. is a North American regional airline headquartered in St. George, Utah, flying to 159 cities in 40 U.S. states, 6 Canadian Provinces, and 1 city in Mexico. The airline serves as a feeder airline, operating under contract with various major carriers. It flies as SkyWest Airlines in a partnership with United Express on behalf of United Airlines and as Delta Connection on behalf of Delta Air Lines.
The Bombardier CRJ100 and CRJ200 are a family of regional airliner manufactured by Bombardier, and based on the Canadair Challenger business jet.
Canadian Aviation Blog