https://www.candia.gr/sites/default/files/webform/1076786596/full-list-of-american-airlines-customer-contact-numbers-in-usa-the-detailed-guide.pdf https://www.candia.gr/sites/default/files/webform/1961510046/american-airlinesr-customer-servicetm-usa-directly-contact-numbers-in-detail-guide.pdf https://www.candia.gr/sites/default/files/webform/2120976829/delta-airlinesr-customer-servicetm-usa-directly-contact-numbers-in-detail-guide.pdf https://www.candia.gr/sites/default/files/webform/1185904391/united-airlinesr-customer-servicetm-usa-directly-contact-numbers-in-detail-guide.pdf