https://ca.community.sony.com/s/question/0D5Dp000023YrlVKAS/united-...
Passengers can receive a full refund if they cancel their flight at least 24 hours before departure. United Airlines offers refunds if you cancel your flight at least 3 hours before departure. If you booked a ticket for travel to or from the US, the refund will be credited within a week. Here are some key points of United Airlines' 24-hour cancellation policy: