https://www.devex.com/people/how-much-does-it-cost-to-cancel-frontier-2178998
https://www.devex.com/people/does-frontier-refund-you-if-you-cancel-2178638
https://www.devex.com/people/does-frontier-refund-you-if-you-cancel-2178439
https://www.devex.com/people/does-frontier-refund-you-if-you-cancel-2178167
https://www.devex.com/people/does-frontier-refund-you-if-you-cancel-2178287
