https://www.pcspecialist.co.uk/forums/threads/full-list-of-qatar-airways%C2%AE%EF%B8%8Fcustomer%C2%AE-contact-in-usa-a-step-by-step-easyguide.105412/

https://www.alltomwindows.se/topic/37001-f%E2%A9%94ull-247%E2%84%A2-list-of-%E2%89%8Bexpedia%E2%93%9D-customer%C2%A9-service%E2%84%97-247-talk-to-person-support-numbers-an-official-guide/

https://www.alltomwindows.se/topic/36990-complete%E2%84%A2-listof-jetblue%C2%AE-customer%C2%A9-service%E2%84%97-947-live-person-care-contact-numbers-a-assistance-guide/

https://www.portingkit.com/forum/showthread.php?tid=90129

https://www.goodreads.com/quotes/14942116-what-day-is-airlines-cheapest-to-book-the-best-days

https://www.goodreads.com/quotes/14942228-how-to-speak-directly-on-frontier-airlines-to-speak-directly

https://www.alltomwindows.se/topic/36958-full-list-of-expedia%C2%A0%C2%AE%EF%B8%8F-customer%C2%AE-service-in-usa-step-by-step-easy-guide%C2%AE%EF%B8%8F/

https://www.goodreads.com/quotes/14942261-how-do-i-communicate-with-frontier-to-communicate-or-make

https://www.alltomwindows.se/topic/36950-full-list-of-united-_-airlines-%C2%AE%EF%B8%8F-customer-contact-numbers-usa-or-uk-2025-guide/

https://www.buzzfeed.com/usa_westjetairlines