Air Canada is suspending its guidance for third-quarter and full-year operating results after the union defied back-to-work orders, which further halted the airline's plan to resume flights.

Air Canada flight attendants said on Sunday (August 17) they will remain on strike and spurn a government return-to-work order they called unconstitutional that would send them back to their duties.

CUPE has, however, described the airline’s offers as “below inflation (and) below market value”.