https://www.goodreads.com/quotes/12898843-united-airlines-guidelines-what-is-the-cheapest-day-to-book-a-flight

https://patch.com/california/los-angeles/calendar/event/20250601/3e54cf17-40ba-426e-b4d1-dbc3a9db890b/cmo-hablar-con-un-representante-de-frontier-en-espaol?edited=1748684239008

https://www.goodreads.com/quotes/12898843-united-airlines-guidelines-what-is-the-cheapest-day-to-book-a-flight

https://docs-americanairline-helpdesk.gitbook.io/en-us/helpdesk/american-airline-contact-number-for-24-7-help-with-flights-hotels-and-more

https://timessquarereporter.com/news/british-airways-customer-service--phone--chat--and-email--direct-contact-methods

https://patch.com/california/mountainview/calendar/event/20250601/119d1695-0f15-47c1-b849-1a41d7cd26ab/cmo-puedo-llamar-a-la-aerolnea-frontier-en-espaol?edited=1748685227515

https://patch.com/california/mountainview/calendar/event/20250601/70358095-5a88-47db-89d3-0bc98d379b30/cmo-hablar-con-un-asesor-humano-en-frontier?edited=1748685307971

https://pantip.com/topic/43527503 https://pantip.com/topic/43527502 https://pantip.com/topic/43527513

https://docs-americanairline-helpdesk.gitbook.io/en-us/helpdesk/your-guide-to-contacting-american-airline-through-their-official-helpline

https://id.carousell.com/p/https-yatramantra-com-topic-klmtelefonomexico-como-puedo-hablar-con-un-agente-de-klm-1372186834/