O’Hare International Airport (ORD)
O’Hare International Airport, commonly called Chicago O’Hare or ORD, is a major international airport serving Chicago and the surrounding metropolitan area. It is located on Chicago’s Northwest Side at 10000 W. O’Hare Ave., Chicago, IL 60666, USA. The airport is operated by the Chicago Department of Aviation (CDA).
IATA code: ORD
ICAO code: KORD
FAA location identifier: ORD
Airport type: International commercial airport
City served: Chicago, Illinois
Airport operator: Chicago Department of Aviation
Official airport website: FlyChicago — O’Hare International Airport
Official contact page: O’Hare / FlyChicago Contact Us
O’Hare International Airport — Quick Facts
| Information | Details |
|---|---|
| Airport name | Chicago O’Hare International Airport |
| IATA code | ORD |
| ICAO code | KORD |
| Location | Chicago, Illinois, United States |
| Address | 10000 W. O’Hare Ave., Chicago, IL 60666 |
| Operator | Chicago Department of Aviation |
| Terminals | 4 passenger terminals: 1, 2, 3 and 5 |
| Main domestic terminals | Terminals 1, 2 and 3 |
| International terminal | Terminal 5 handles most international arrivals/departures |
| Airport Transit System | ATS connects Terminals 1, 2, 3, 5 and the Multi-Modal Facility |
| Public transit | CTA Blue Line, Pace, Metra connections |
| Official website | FlyChicago O’Hare |
| Wikipedia | O’Hare International Airport — Wikipedia |
O’Hare covers more than 7,200 acres and, according to Chicago Department of Aviation figures, had 201 gates as of January 2025.
Important O’Hare Airport Contact Numbers
The following numbers are particularly useful for passengers, visitors and people meeting travelers.
| Purpose | Phone number | Notes |
|---|---|---|
| O’Hare Customer Service | 800-832-6352 | General airport/customer assistance |
| O’Hare Airport Emergency / Communications Center | 773-894-9111 | Airport emergency reporting; no flight information |
| Chicago Police — airport/public-area lost property | 773-686-2385 | Lost property in public terminal areas |
| Chicago Police non-emergency | 773-894-5000 | Non-emergency police matters listed on the airport terminal map |
| O’Hare Parking Information | 773-686-7530 | Parking reservations/general parking assistance |
| Airport Transit System (ATS) Lost & Found | 773-462-0400 | For items lost on the ATS |
| Restaurants/Food-service lost property | 773-377-7804 | Lost items in airport food-service locations |
| Hudson News lost property | 773-686-7535 | Items lost at Hudson News |
| Terminal 5 Customs lost property | 773-686-3157 | Items lost in the T5 Customs area |
| TSA Cares | 855-787-2227 | Security-screening assistance for travelers with disabilities, medical conditions or special circumstances |
| CTA customer service | 888-968-7282 | CTA transportation information |
| Pace | 847-364-7223 | Suburban bus information |
| Metra | 312-322-6777 | Regional commuter rail information |
| Travelers Aid Chicago | 773-894-2427 | Passenger assistance and airport guidance |
| O’Hare ADA Coordinator | 773-894-3728 | Airport accessibility-related issues |
O’Hare Airport Terminals
O’Hare has four passenger terminals:
- Terminal 1
- Terminal 2
- Terminal 3
- Terminal 5
There is currently no Terminal 4 passenger terminal; Terminal 4 historically existed as an international terminal before international operations moved to the current Terminal 5.
| Terminal | Concourses | General role | Key information |
|---|---|---|---|
| Terminal 1 | B, C | Primarily United Airlines operations and associated Star Alliance services | Domestic and some international departures |
| Terminal 2 | E, F | Primarily United and other domestic carriers | Domestic operations; some international/precleared services |
| Terminal 3 | G, H, K, L, L-Stinger | Primarily American Airlines and other domestic carriers | Large domestic terminal with multiple concourses |
| Terminal 5 | M | International-focused terminal | Most international arrivals and many international departures |
Lost and Found at O’Hare
There isn’t one single lost-and-found office for every item at O’Hare. Where you lost the item determines whom you should contact.
| Where the item was lost | Who to contact |
|---|---|
| Airplane, airline counter or gate | Your airline |
| TSA/security checkpoint | TSA Lost & Found |
| Public terminal area | Chicago Police — 773-686-2385 |
| ATS train | ATS Lost & Found — 773-462-0400 |
| Parking facility | Standard Parking — 773-686-7530 |
| Terminal 5 Customs area | U.S. Customs — 773-686-3157 |
| Restaurant/food service | 773-377-7804 |
| Hudson News | 773-686-7535 |
Important Airport Identifiers
| Identifier | Value |
|---|---|
| IATA | ORD |
| ICAO | KORD |
| FAA | ORD |
| Airport code commonly used for flights | ORD |
| Airport name | Chicago O’Hare International Airport |
| City | Chicago |
| State | Illinois |
| Country | United States |
O’Hare Airport FAQs
What is the airport code for O’Hare International Airport?
The airport code is ORD. Its ICAO code is KORD.
Where is O’Hare International Airport located?
O’Hare is located at 10000 W. O’Hare Ave., Chicago, Illinois 60666, on Chicago’s Northwest Side.
How many terminals does O’Hare Airport have?
O’Hare has four passenger terminals: Terminals 1, 2, 3 and 5.
Does O’Hare have a Terminal 4?
No. O’Hare currently uses Terminals 1, 2, 3 and 5 for passenger operations.
Which terminal is international at O’Hare?
Terminal 5 is O’Hare’s principal international terminal. However, certain international services—particularly flights involving U.S. preclearance—can operate through Terminals 1–3.
Can I walk between O’Hare terminals?
Terminals 1, 2 and 3 are interconnected. For Terminal 5, passengers generally use the Airport Transit System (ATS) or an appropriate connecting-passenger transfer service.
Is the O’Hare Airport Transit System free?
The ATS is an airport people-mover service connecting O’Hare’s terminals and transportation facilities; passengers do not need a separate CTA ticket to ride the airport system.
Is there public transportation from O’Hare to downtown Chicago?
Yes. The CTA Blue Line provides direct rail service between O’Hare and Chicago.
What is O’Hare’s main customer-service number?
The O’Hare customer-service number is 800-832-6352.
What is the emergency phone number at O’Hare?
For emergencies within the airport, O’Hare lists 773-894-9111 for its Communications Center. For an immediate life-threatening emergency in the United States, 911 should be used.
What should I do if I lose something at O’Hare?
Contact the organization responsible for the location where the item was lost. Airline items go to the airline, security-checkpoint items to TSA, public-area items to Chicago Police, ATS items to ATS Lost & Found, and parking items to the parking operator.
Does O’Hare have free Wi-Fi?
Yes. O’Hare provides free Wi-Fi throughout the terminals, including pre-security and post-security areas.
How early should I arrive at O’Hare?
Your airline’s recommended arrival time should take priority because check-in, baggage, security and international processing times vary. International passengers should generally allow more time than domestic passengers.
Does O’Hare have wheelchair assistance?
Yes, but passengers should request wheelchair and mobility assistance through their airline. TSA-related screening accommodations can be coordinated through TSA Cares.
Where can I find the official O’Hare terminal map?
The official airport terminal map and airline-by-terminal information are available through FlyChicago.