Note that Untied.com strongly discourages readers from using the contact information provided below to harass or intimidate the management or other personnel at United Airlines. The addresses, emails, and telephone numbers are provided only as a means to facilitate more efficient communication between you and those in the airline with the decision-making authority to help resolve your problem.
United's headquarters physical address is 233 South Wacker Drive, Chicago, IL 60606, USA. The airline's upper management has undergone some significant changes as a result of the government investigation of corruption, but specific contacts, as publicly available from other websites, are as follows:
Managing Director, Customer Solutions
P.O. Box 66100
Chicago, IL 60666