https://www.devex.com/people/flexible-rebooking-terms-does-frontier-refund-you-if-you-cancel-2232458
https://www.devex.com/people/flexible-rebooking-terms-does-frontier-refund-you-if-you-cancel-2232458
https://www.devex.com/people/flexible-rebooking-terms-does-frontier-refund-you-if-you-cancel-2232458