https://www.steadyhealth.com/topics/hassle-free-help-the-best-ways-to-reach-avianca-airlines-customer-support

https://intercom.help/lines-c0ce497a7978/en/articles/10783018-como-hablar-con-un-representante-de-j-e-t-b-l-u-e-en-espanol

¿Cómo contactar a Delta desde Chile?

https://superuser.com/questions/1886275/cheapest-day-to-book-flights-on-expedia-when-to-buy

https://www.steadyhealth.com/topics/como-puedo-llamar-a-alaska-airlines-desde-mexico-2

https://intercom.help/lines-c0ce497a7978/en/articles/10783018-como-hablar-con-un-representante-de-j-e-t-b-l-u-e-en-espanol

https://intercom.help/lines-c0ce497a7978/en/articles/10783138-what-day-is-the-cheapest-to-book-american-airlines

https://www.goodreads.com/quotes/12651824-how-do-i-claim-with-expedia-how-do-i-make-a

https://support.google.com/edu/classroom/thread/331213267?hl=en&sjid=12715923177516887979-NA

https://intercom.help/jhon-2b8e25bcad0d/en/articles/10783143-avoidefee-how-to-avoid-latam-airlines-cancellation-fee