Air Canada has canceled hundreds of flights — many of them international flights — as a potential strike by flight attendants looms

Flight attendants are demanding better wages and compensation for unpaid work. Currently, Air Canada only compensates flight attendants for the time they are in the air, but its attendants are seeking pay for the work they do before take-off and after landing, too.

A strike by the carrier’s flight attendants could disrupt 130,000 travelers a day, including international fliers. Here’s what to know if your flight is affected.