https://forum.air-defense.net/topic/42554-c%C3%B3mo-puedo-llamar-a-united-airlines-desde-m%C3%A9xico/
https://forum.air-defense.net/topic/42548-how-to-speak-to-a-human-at-american-airlines-for-real-time-support-%E2%80%94-top-ways/
https://forum.air-defense.net/topic/42496-ten-ways-to-talk-to-a-live-agent-at-frontier-airlines-get-help-right-away/
https://forum.air-defense.net/topic/42465-11-ways-to-speak-with-a-live-agent-at-delta-airlines-contact-them-instantly/
https://www.emutalk.net/threads/how-to-talk-to-a-live-agent-at-alaska-airlines-call-now-support.58751/
https://forum.air-defense.net/topic/42537-call-american-airlines-support-%E2%80%94-easy-ways-to-book-or-get-help-with-a-live-agent/
https://www.emutalk.net/threads/llamada-al-servicio-de-atenci%C3%B3n-al-cliente-de-american-airlines.58765/
https://www.emutalk.net/threads/ten-proven-ways-to-call-a-real-person-at-united-airlines-%E2%80%93-a-complete-step-by-step-guide.58548/