https://www.wyomilitary.wyo.gov/wp-content/uploads/formidable/14/e-x-p-e-dia-usa-customer-service-full-step-by-step-guide.pdf

https://education.aaaai.org/sites/default/files/webform/complete-list-of-official-expedia-customer-contact-numbers-in-the-usa-the-ultimate-detailed-guide.pdf

https://www.thefreshloaf.com/node/77309/16-ways-talk-live-united-airlinesr-agent-step-step-help

https://discuss.tindie.com/t/full-list-of-american-airlines-customer-service-usa-contact-numbers-a-step-by-step-guide/534010

https://educativ.net/forums/topic/39826-westjet-%E2%84%A2%EF%B8%8Fairlines%C2%AE%EF%B8%8F-customer-main-support%C2%AE%EF%B8%8F-usa-contact-numbers-a-complete-guide/

https://discuss.tindie.com/t/12-ways-to-contact-expedia-step-by-step-guide-to-reach-a-human-representatives/534032

https://chandoo.org/forum/threads/9-ways-to-connect-with-allegiant-airlines%C2%AE%EF%B8%8F-agent-instantly.60511/

https://forum.novaskin.me/t/ful-list-of-expedia-refund-service-usa-contact-numbers-a-complete-ultimate-complete-guide/30871

https://educativ.net/forums/topic/39675-complete-list-of%E2%84%A2%EF%B8%8F-volaris%C2%AE-support%E2%84%A2%EF%B8%8F-contact-numbers-in-the-usa%C2%AE%C2%AE%EF%B8%8F-%E2%80%93-the-ultimate-official-guide/

https://id.one-line.com/sites/g/files/lnzjqr1601/files/2025-08/12-ways-to-call-united-airlines-usa-contact-numbers.pdf