https://atomicacademia.com/threads/allegiant-can-i-cancel-my-allegiant-flight-without-penalty.66614/

https://forum.dimensionengineering.com/topic/30683-connecting-with-a-real-person-at-frontier-airlines-a-complete-guide/

https://forum.dimensionengineering.com/topic/30750-speak-to-an-frontier-at-%E2%98%8E18557384265-airlines-agent-about-travel-restrictions/

https://www.goodreads.com/quotes/12707552-what-is-the-cheapest-day-to-fly-on-frontier-flights

https://www.goodreads.com/quotes/12707287-how-do-i-ask-a-question-at-expedia-support-tips-24-7-you

https://airlineservices.uvdesk.com/en/blog/delta-telefono-mexico

https://support.google.com/admanager/thread/336789674?hl=en&sjid=12297410485133483664-NC

https://www.goodreads.com/quotes/12707400-is-expedia-actually-fully-refundable-allows-cancellations-with-full

https://www.goodreads.com/quotes/12707273-does-expedia-have-a-live-agent-yes-expedia-offers-customer

https://support.google.com/admanager/thread/336789674?hl=en&sjid=12297410485133483664-NC