Appointments must be made in any event 7 days ahead of time. Cancellation and change must be finished by calling the Vistara airline cancellation policy. Cancellation 24 hours according to Vistara 24-hour Cancellation policy, travelers can drop a flight set up for Vistara within 24 hours of the buy. For more information call us +1-855-805-5447

https://www.thecustomerservicenumber.com/vistara-airlines-customer-service/