Here are some general contact methods for United Airlines:

Customer Service: United Airlines Customer Service: 1-800-UNITED-1 (1-800-864-8331)

For hearing impaired (TTY): 1-800-323-0170

Airport Contact: Dulles International Airport Information: 703-572-2700
United Airlines at Dulles International Airport may have a specific ticket counter or customer service desk. Check the airport's directory or information desk for assistance.

Website: Visit the official United Airlines website for contact information and assistance: United Airlines Contact

Social Media: Consider reaching out through United Airlines' official social media channels, such as Twitter or Facebook.