Well, WestJet's change flight policy allows travelers to make modifications without any hassle. Depending upon fares, customers can modify or change their flights either free of cost or with an added fee. Flexible fares usually allow free changes while basic fares charge for changes made. Changing dates can be done via the westjet.com website, or they can contact customer service directly. As for day-of ticket change, an applicable fee will apply depending on the availability of seats. It is advised to make all these changes after fully understanding the WestJet change flight policy; otherwise, it may lead to costly revelations. Always check back on anything new to have all the trouble-free journey that you deserve.