Below are their least profitable routes, according to AI. Be interesting to see if that is what they shutdown first. Alternatively, it may be a matter of placing the planes in the least expensive hangers while they wit out the strike.
Key least profitable or discontinued routes include:
Toronto-(YYZ) to Vancouver (YVR)
Montreal to Detroit (DTW), Minneapolis (MSP)
Toronto to Indianapolis (IND)
Vancouver to Nashville (BNA), Tampa (TPA)
Several Western Canada routes from Calgary to smaller cities