https://www.devex.com/people/does-frontier-airlines-give-refunds-frontier-refund-policy-2013775

https://www.devex.com/people/usa-faq-what-days-are-frontier-flights-cheapest-know-2013710

https://hackmd.io/@James1998/rkqHBUVJ1l

https://www.devex.com/people/top-faq-what-is-the-cancellation-policy-for-american-airlines-2013443

https://www.devex.com/people/top-faq-what-is-the-cancellation-policy-for-american-airlines-aa-2013601

https://www.devex.com/people/aa-american-airlines-provides-a-24-hour-refund-policy-2013594

https://www.devex.com/people/aa-american-airlines-provides-a-24-hour-refund-policy-faq-2013576

https://www.devex.com/people/can-you-change-your-name-on-an-american-airlines-ticket-aa-all-policies-2013554

https://www.devex.com/people/top-faq-what-is-the-cancellation-policy-for-american-airlines-2013443

https://www.devex.com/people/aa-american-airlines-provides-a-24-hour-refund-policy-faq-2013428

https://www.devex.com/people/faq-american-airlines-provides-a-24-hour-refund-policy-2013409

https://www.devex.com/people/what-is-the-cancellation-policy-for-american-airlines-aa-2013394