On Saturday, flight attendants were ordered to “resume their duties” by 2 p.m. ET Sunday, according to a statement from the Air Canada component of CUPE. The CUPE said it invited Air Canada back to the negotiating table, “rather than relying on the federal government to do their dirty work for them when bargaining gets a little bit tough.”

As Air Canada cancels flights in anticipation of a possible strike, experts say this could result in millions of dollars of delayed claims.