| Service / Region | Phone Number | Notes |
|---|---|---|
| General Reservations (U.S.) | 800-864-8331 | Available 24/7 for booking and general inquiries. |
| International Reservations | 312-364-1989 | Available 24/7 for international customers. |
| Customer Service | 800-538-2929 | Available 24/7 for customer support. |
| Post-Travel Feedback | 877-624-2660 | Available 24/7 for post-travel feedback. |
| Flight Information | 800-325-1999 | For real-time flight status and information. |
| Lost/Damaged Baggage | 800-335-2247 | For assistance with baggage issues. |
| Group Sales (Domestic) | 800-532-4777 | Monday–Friday, 8 AM–8 PM ET. |
| Group Sales (International) | 800-337-4777 | Monday–Friday, 8 AM–8 PM ET. |
| Special Assistance | 800-228-2744 | For passengers requiring special assistance. |
United Airlines, established in 1926, is a major American airline headquartered in Chicago, Illinois. It operates an extensive domestic and international route network, serving more destinations than any other airline. United is a founding member of the Star Alliance, the world’s largest global airline alliance.
United Airlines operates a fleet of over 1,000 aircraft, offering services to 383 destinations across six continents. The airline’s primary hubs include Chicago–O’Hare, Denver, Houston–Intercontinental, Los Angeles, Newark, San Francisco, and Washington–Dulles.