The union representing 10,000 Air Canada flight attendants says it's reached a tentative agreement with the carrier and their strike, which had entered its fourth day, is over.

What the unions, the Liberal government and big business feared most was that the flight attendants' defiance of the back-to-work order would spread and mobilize broader sections of the working class across Canada.

Air Canada's flight attendant union reached a tentative agreement with the country's largest airline, after a multi-day strike that temporarily halted operations.