https://www.signlanguageforum.com/bsl/topic/6831-dial-call-now-talk-to-someone-at-delta-airlines%C2%AE%EF%B8%8F-usa-contact-numbers-complete-2025-guide/
https://forum.bfddrums.com/t/08-ways-to-call-how-can-i-speak-to-someone-at-american-airline-s-a-comprehensive-guide/9323
https://forums.x-pilot.com/forums/topic/42431-reach-spirit-airlines%C2%AE%EF%B8%8F-in-the-usa-2025-contact-service-manual-full-guide/
https://forums.x-pilot.com/forums/topic/42425-reach-united-airlines%C2%AE%EF%B8%8F-in-the-usa-2025-contact-service-manual-full-guide/