https://www.historycouncilvic.org.au/27751/how_to_use_united_airlines_flexible_travel_policies_to_change_canceled_flights_easily_q2cckx1flec6ehwly_bbva

https://airlineguige.zohodesk.com/portal/en/kb/articles/help-does-qatar-have-a-free-cancellation

https://patch.com/california/los-angeles/calendar/event/20250629/3277830a-fc77-4225-9ec8-bcea0637c0fc/reyryr

https://sonat.com/@airlinesguide/12-ways-to-contact-southwest-airlines-usa-contact-numbers-the-complete-guide

https://patch.com/california/los-angeles/calendar/event/20250629/3277830a-fc77-4225-9ec8-bcea0637c0fc/reyryr

https://patch.com/california/los-angeles/calendar/event/20250629/3277830a-fc77-4225-9ec8-bcea0637c0fc/reyryr

https://www.interfaithchesapeake.org/mrjunga/how_far_in_advance_can_you_book_jetblue_flights_nyrcbqii-1cvsgg2uw_qja

https://sonat.com/@airlinesguide/12-ways-to-contact-alaska-airlines-usa-contact-numbers-the-complete-guide

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5328596

https://patch.com/california/los-angeles/calendar/event/20250629/3277830a-fc77-4225-9ec8-bcea0637c0fc/reyryr