Does Air France have a hour cancellation policy

Yes you can cancel a flight and get a full refund from Air France Airlines by calling their customer service at 1-888-918-0796. You will receive a full refund if you cancel within 24 hours of booking, as airlines must issue a full refund in this timeframe

Source: https://www.benjaminfranklinbears.org/forum/general-discussion/does-air-france-have-a-hour-cancellation-policy