Flights to and from the U.S. can be changed within 24 hours without any change fees, and reservations are guaranteed 7 days or more before scheduled departure. Passengers can also change their flight on the selected route up to 4 hours before the scheduled departure time. You will need to pay the fare difference and change fee as specified by Volaris Airlines.
Volaris Cancellation Policy says There is no change fee if you change your flight 24 hours before departure. It's the only amount you'll have to pay for the fare difference, but if you change flights on the same day of departure, you'll have to pay a $100 to $400 fee. Fare difference.
Passengers may request a refund within 24 hours of flight cancellation. The airline may request a refund even if there is a delay of more than 3 hours. Passengers holding refund tickets will request a refund.
The passenger must complete the return application form. If the flight ticket is canceled a few minutes before departure, they are non-refundable.
When a ticket is canceled after the flight has departed, airlines will not issue a refund for the ticket type, whether it is non-refundable or non-refundable.