https://www.sog.unc.edu/sites/default/files/webform/Delta-Airline%C2%AE-Customers%E2%84%A2-Service%C2%AE-USA-Numbers-24-7-Live-Support-A-Complete-Guide.pdf https://www.sog.unc.edu/sites/default/files/webform/faqs-tm-list-of-american-airlines%C2%AE-customer%C2%A9-service%E2%84%97-247-live-person-support-numbers-a-complete-guide.pdf https://www.sog.unc.edu/sites/default/files/webform/faqs-tm-list-of-american-airlines-customer-service-24-7-live-person-support-numbers-a-complete-guide.pdf https://www.sog.unc.edu/sites/default/files/webform/faqs-tm-list-of-delta-airlines%C2%AE-customer%C2%A9-service%E2%84%97-247-live-person-support-numbers-a-complete-guide.pdf https://www.sog.unc.edu/sites/default/files/webform/faqs-tm-list-of-delta-airlines-customer-service-24-7-live-person-support-numbers-a-complete-guide.pdf https://www.sog.unc.edu/sites/default/files/webform/faqs-tm-list-of-united-airlines%C2%AE-customer%C2%A9-service%E2%84%97-247-live-person-support-numbers-a-complete-guide.pdf https://www.sog.unc.edu/sites/default/files/webform/faqs-tm-list-of-united-airlines-customer-service-24-7-live-person-support-numbers-a-complete-guide.pdf