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-2013443

https://supportsi.hexagon.com/help/s/question/0D5Tc00000HIHVWKA5/aaservices-1877-790-3320what-is-the-cancellation-policy-for-american-airlin...

https://supportsi.hexagon.com/help/s/question/0D5Tc00000HHX9yKAH/american-airline-what-is-the-cancellation-policy-for-american-airlines?lang...

https://www.aomeitech.com/forum/discussion/23049/%CE%9B%CE%99%CE%99%CE%B5%C9%A0%E2%85%B0%E1%BE%80%CD%B6%CD%B3-can-i-cancel-my-allegiant-flig...

https://www.aomeitech.com/forum/discussion/23101/solution-with-refund-does-frontier-give-refunds-for-cancelled-flights/p1?new=1

https://www.aomeitech.com/forum/discussion/22754/%CF%9C-%E1%BD%80%CD%B7%CD%B3%CE%AF%E1%BC%93-how-long-do-you-have-to-cancel-with-frontier-as...

https://www.aomeitech.com/forum/discussion/22438/%CF%9C-%E1%BD%80%CD%B7%CD%B3%CE%AF%E1%BC%93-how-to-avoid-frontier-cancellation-fee-does-fro...

https://www.devex.com/people/does-frontier-have-a-24-hour-cancellation-policy-get-faq-2009593

https://www.devex.com/people/does-frontier-give-refunds-for-cancelled-flights-top-faq-2008523