https://www.devex.com/people/how-much-does-it-cost-to-pick-your-seat-on-american-airlines-2457879

https://www.devex.com/people/absolutely-refundable-is-expedia-actually-fully-refundable-2457833

¿Cómo hablar con un representante de Delta en español

https://www.tripadvisor.com/ShowTopic-g1-i10702-k15067385-How_to_Connect_Expedia_Customer_Care_from_the_USA_guide-Air_Travel.html

¿Cómo hablo con alguien en United

https://www.tripadvisor.com/ShowTopic-g1-i10702-k15067393-How_to_Reach_Expedia_for_Customer_care_Help_best_Care_line-Air_Travel.html

¿Cómo contactar a Expedia Airlines por teléfono

https://www.devex.com/people/fast-track-fix-name-errors-on-united-airlines-reservations-with-ease-2457706

https://www.devex.com/people/como-hablar-con-un-representante-de-southwest-telefono-mexico-2457858

What is the refundable option on Expedia