Yes, Expedia has a 24-hour flight cancellation policy that applies to all tickets booked directly through their website or mobile app. This policy states that if you cancel your flight within 24 hours of booking and the flight i…Yes, Expedia has a 24-hour flight cancellation policy that applies to all tickets booked directly through their website or mobile app. This policy states that if you cancel your flight within 24 hours of booking and the flight i…