I once booked an Air Canada flight late at night and realized the next morning that I’d chosen the wrong dates. I wasn’t sure if I’d be charged a fee, so I called 877-764-3622 to check. The agent confirmed that Air Canada does offer a 24-hour free cancellation policy for eligible bookings. They helped me cancel my original flight and rebook the correct dates without any extra cost. It was such a relief because I had been worried about losing money on a mistake I made in a hurry. If you ever need to cancel or adjust your Air Canada flight within that first day, calling that number is the fastest and most reliable way to make sure you do it correctly and stress-free.