A crippling strike by Air Canada flight attendants that grounded thousands of flights over wages and unpaid labor is the latest blow to the airline industry's compensation system that does not fully pay cabin crews for their hours at work.

Air Canada flights within North America are expected to ramp up this morning as the airline continues its operational restart following a three-day flight attendants’ strike.

Air Canada’s contract offer to its 10,500 flight attendants includes payment for work done before the plane is in motion, a response to a major complaint by employees of the country’s biggest airline.