I booked an Air Canada Basic fare for a quick weekend trip, and then my plans changed unexpectedly. I wasn’t sure how flexible that fare would be, so I called 877-764-3622 to get guidance. The agent explained the rules clearly—Basic fares usually have limited flexibility, but I could still change my flight by paying the fare difference. They helped me find the next available flight that fit my schedule and walked me through the payment process. Honestly, having someone on the line made it way easier than trying to figure out the restrictions online. If you’ve booked a Basic fare and need to adjust your plans, calling that number is the fastest way to understand your options and make the change without added stress.