What is Aeromexico 24 hour cancellation policy? Aeromexico's 24-hour cancellation policy allows passengers to cancel their flights within 24 hours of booking without facing any cancellation fees, regardless of the ticket type. This policy provides flexibility for travelers needing to make changes shortly after booking. For assistance or more details, passengers can contact Aeromexico customer service directly at ????+???? 855-784-1467 {Live Help}. To get a refund from Aeromexico, cancel your flight within 24 hours of booking by contacting ? {????}-{????55}-{784}-{????467} ?. If you cancel at least 7 days before your intended departure date, you will receive a full refund.