If you need to cancel your domestic Volaris flight, you can do so and receive a refund, but you will have to inform the Volaris Airlines customer support team 24 hours prior to the scheduled departure. If you want to cancel your ticket, you will need to submit a refund request form. The airline will not transfer a refund to your account without accepting your refund request. In case Volaris Airlines cancels or reschedules your flight, you may entitled to a full refund.
https://flightcancellationpoli....cy.com/volaris-airli

Volaris Airlines Cancellation Policy, Fees and refund

The Volaris Airlines cancellation fee is nothing if you cancel your flight within 24 hours; otherwise, you have to pay a flight cancellation fee.