https://www.devex.com/people/does-frontier-give-refunds-for-cancelled-flights-top-faq-2009322

https://www.devex.com/people/how-to-avoid-frontier-cancellation-fee-_does-frontier-give-you-a-refund-top-faq-2008503

https://www.devex.com/people/faq-does-frontier-have-a-24-hour-cancellation-policy-_contactus-2002899

https://www.devex.com/people/does-frontier-have-a-24-hour-cancellation-policy-_fast-representative-2002108

https://apidocs.eightfold.ai/discuss/67010ed6727e4c001996c568

https://www.devex.com/people/does-frontier-have-a-24-hour-cancellation-policy-_fast-representative-2002108

https://apidocs.eightfold.ai/discuss/6700ec3f384bae001f65e5a2