https://www.scienceforums.com/topic/95869-14-ways-to-contact-lufthansa-usa-contact-numbers–the-complete-guide/

https://www.scienceforums.com/topic/95869-14-ways-to-contact-lufthansa%C2%AE%EF%B8%8F-usa-contact-numbers-%E2%80%93-the-complete-guide%C2%A0/