https://www.buzzfeed.com/untiedairlinescustomer_service
https://www.buzzfeed.com/usaunitedcustomercare
https://www.buzzfeed.com/united_ua_customer_support
https://www.buzzfeed.com/united_airlines_customer_care
https://www.buzzfeed.com/lufthansaairlineshelplines
https://www.buzzfeed.com/deltacustomer_service
https://www.buzzfeed.com/deltahelpguide
https://www.buzzfeed.com/deltaairlineshelpguideee
https://www.buzzfeed.com/lufthansa_tollfreenumber_care
https://www.buzzfeed.com/lufthansaairlines_phonenumber
https://www.buzzfeed.com/lufthansa_airlinescustomercare
https://www.buzzfeed.com/lufthansaairlinessupportnumber
https://www.buzzfeed.com/lufthansaairlinesphonenumber
http://www.trailforums.com/t/full-list-of-official-delta-airlines-customer-service-contact-numbers-in-usa-the-ultimate-official-guide/15443
http://www.trailforums.com/t/full-list-of-official-lufthansa-airlines-customer-service-contact-numbers-in-usa-the-ultimate-official-guide/15465