https://www.devex.com/people/does-united-have-a-24-hour-cancellation-policy-2484211

https://tidal.com/browse/playlist/0b4815e9-4092-4045-b077-194bc6fdfc34

¿Cómo hablo con alguien en United

https://knowt.com/note/7d9f7bb5-00b1-4081-b724-dcd96530e273/c-How-do-I-connect-wit

https://knowt.com/note/ead9796c-2059-4865-abff-8836625d50aa/CustomerSupportHow-do-I-communicate-t

https://locendo.com/index.php?route=classified/classified_view&classified_id=476043

https://www.devex.com/people/united-how-close-to-departure-can-i-cancel-a-flight-with-united-2484210

https://locendo.com/index.php?route=classified/classified_view&classified_id=476056

https://knowt.com/note/14360f62-dd6b-4731-969d-63bd891a280f/Airline-InfoHow-do-I-communicate-to-I

https://knowt.com/note/e09f3504-8e4d-40cd-abb0-51a3595c4556/What-are-the-cheapest-days-to-fly-Spirit