Flights operated by Air Canada’s main line or Rouge would be impacted, and most likely cancelled were flight attendants to go on strike. Air Canada Express and Jazz flights might not be impacted directly, since they are in different agreements, but could be due to the impact of cancelled flights.

The union said the key issues on the bargaining table are what it calls 'poverty-level wages for junior flight attendants,' and 'hours and hours of mandatory unpaid work.'

MONTREAL — Air Canada flight attendants start voting today on whether to give a strike mandate to their union. The vote, running through to Aug. 5, comes after the Air Canada component of the Canadian Union of Public Employees concluded the conciliation process with no deal reached.