The United Airlines Chicago Office plays a central role in the airline’s U.S. and global operations. Chicago is not just another destination for United — it is the airline’s corporate headquarters city and one of its largest global hubs, primarily centered at O'Hare International Airport (ORD).
Because of this hub structure, most passenger-facing services are handled directly at the airport rather than through a traditional downtown ticket office.
United Airlines does not operate a public walk-in downtown ticket office in Chicago for general passenger services.
Instead, in-person assistance is provided through:
● Airport-based customer service counters at Chicago O’Hare (ORD)
● Official United Airlines reservation and support phone lines
● Digital services via the official website and mobile app
This structure ensures passengers receive real-time, flight-specific assistance at the departure airport.
United Airlines’ global headquarters is located in:
233 South Wacker Drive
Chicago, Illinois 60606
United States
The headquarters is based inside the iconic Willis Tower in Chicago.
⚠️ Important: The corporate office primarily handles executive, investor, and administrative matters — not routine ticketing or booking services.
Chicago O’Hare is one of United’s largest operational hubs worldwide, operating hundreds of flights daily.
From ORD, United Airlines operates:
● Extensive domestic routes across the United States
● International flights to Europe, Asia, Latin America, and the Middle East
● Connections via Star Alliance partner airlines
● United Express regional operations
Because of this hub status, ORD provides one of the most comprehensive United service experiences in the country.
At Chicago O’Hare International Airport, United provides full travel-day support:
● New flight bookings
● Ticket changes and reissues
● Same-day flight change assistance
● Fare difference and upgrade inquiries
● Airport check-in and boarding passes
● Checked baggage drop
● Oversized and special baggage handling
● Assistance for delayed, lost, or damaged baggage
● Rebooking during cancellations or delays
● Missed connection assistance
● Alternate flight arrangements
● Travel disruption guidance
● Wheelchair services
● Assistance for elderly travelers
● Unaccompanied minor support
● Medical and accessibility coordination
● Passport and visa document verification
● Travel requirement guidance
● International check-in assistance
● MileagePlus account inquiries
● Mileage accrual and redemption assistance
● Upgrade eligibility and waitlist information
Even though there is no downtown ticket office, passengers can reach United through official channels:
● 24/7 support for reservations, changes, refunds, and general inquiries
● Online booking
● Manage reservations
● Seat selection
● Online check-in
● Flight status tracking
● MileagePlus account management
● Mobile boarding passes
● Real-time gate updates
● Delay notifications
● Direct customer service access
While O’Hare is the primary hub, United has limited operations at:
● Chicago Midway International Airport (MDW) – minimal presence
● Regional airports connecting into ORD via United Express
Most full-service passenger support remains centralized at O’Hare.
● Arrive at least 2 hours before domestic flights
● Arrive 3 hours before international departures
● Use online check-in 24 hours before departure
● Monitor Chicago weather conditions, especially in winter
● Take advantage of hub flexibility — alternate flights are often available
● City Walk-In Office: ❌ No downtown ticket office
● Main Service Location: ✔️ Chicago O’Hare International Airport (ORD)
● Headquarters Location: ✔️ Willis Tower, Chicago
● Hub Status: One of United’s largest global hubs
● Passenger Services: Full airport-based assistance
● Best Contact Method: Airport counters for travel-day help; phone/online channels for general support
Chicago is both the corporate headquarters city and one of the most important operational hubs for United Airlines. The airline’s presence at O’Hare ensures high flight frequency, international connectivity, and comprehensive passenger support.