Chicago O’Hare International Airport (ORD) is one of the busiest airports in the world and a major aviation hub for domestic and international travel in the United States.
Located northwest of downtown Chicago, O’Hare connects travelers to destinations across North America, Europe, Asia, Latin America, and the Middle East.
Because of its massive size and high passenger volume, understanding O’Hare’s terminal system, transportation options, and airport facilities can help travelers navigate the airport more smoothly.
In this guide, we’ll cover O’Hare terminals, airlines, transportation, lounges, parking, and practical airport tips.
Chicago O’Hare Airport Overview
- Airport Name: Chicago O’Hare International Airport
- Airport Code: ORD
- Location: Chicago, Illinois
- Distance from Downtown Chicago: Approximately 17 miles
- Number of Passenger Terminals: 4 terminals
O’Hare serves as a major hub for both United Airlines and American Airlines.
O’Hare Airport Terminals Explained
Chicago O’Hare currently operates four main passenger terminals.
Terminal 1
Mainly used by United Airlines and Star Alliance partner airlines.
Terminal 1 includes:
- United domestic flights
- United Club lounges
- International connections
Terminal 2
Handles select domestic airlines and regional operations.
Airlines may include:
- JetBlue Airways
- Alaska Airlines
- Regional carriers
Terminal 3
Primarily serves American Airlines and Oneworld alliance partners.
This terminal includes:
- American Airlines domestic flights
- Premium lounges
- Large dining and shopping areas
Terminal 5
The main international terminal at O’Hare.
Terminal 5 handles:
- International arrivals
- Customs & immigration
- Foreign international airlines
Major international airlines include:
- British Airways
- Lufthansa
- Emirates
- Air France
- Qatar Airways
Airlines Operating at O’Hare
Chicago O’Hare serves dozens of domestic and international airlines.
Major carriers include:
- United Airlines
- American Airlines
- Delta Air Lines
- Southwest Airlines
- Spirit Airlines
- British Airways
- Lufthansa
- Air Canada
O’Hare provides extensive nonstop flight connectivity throughout the world.
Transportation Options from O’Hare
Chicago CTA Blue Line
The CTA Blue Line provides direct train service between O’Hare and downtown Chicago.
It remains one of the most affordable transportation options for travelers.
Taxis & Ride-Sharing Services
Uber, Lyft, and taxis operate from designated pickup areas outside the terminals.
Airport Shuttles
Shared shuttle services connect travelers with hotels and nearby suburbs.
Rental Cars
Rental car companies operate from dedicated facilities connected by shuttle transportation.
O’Hare Airport Lounges
O’Hare offers multiple premium airport lounges for eligible travelers.
Popular lounge options include:
- United Club
- American Airlines Admirals Club
- Delta Sky Club
- Priority Pass lounges
- International airline lounges
Many lounges provide WiFi, food, drinks, showers, and quiet seating areas.
Parking at Chicago O’Hare
Travelers can choose from several parking options:
- Hourly parking
- Daily parking
- Economy parking
- Valet parking
- Off-site airport parking
Advance parking reservations are recommended during holidays and peak travel seasons.
TSA & Security Tips
- Arrive 2 hours early for domestic flights
- Arrive 3 hours early for international flights
- Use TSA PreCheck when available
- Monitor terminal information before departure
- Allow extra time during winter weather conditions
Chicago weather can sometimes cause flight delays during winter months, especially snowstorms.
Hotels Near O’Hare Airport
O’Hare offers many nearby hotel options for travelers with overnight stays or early departures.
Popular hotel categories include:
- Airport business hotels
- Budget hotels
- Luxury airport accommodations
- Shuttle-connected hotels
Many nearby hotels offer complimentary airport shuttle transportation.
TravelMozo Travel Tips
If you’re flying through Chicago, you can also explore our route guides including Chicago to Orlando flights, cheap flights from New York to Miami, and New York to London flights.
You can additionally compare airline policies through our guides on United Airlines cancellation policy, Southwest carry-on rules, and Spirit Airlines baggage fees.
Final Thoughts
Chicago O’Hare International Airport remains one of America’s most important aviation hubs, offering extensive domestic and international connectivity.
Understanding terminal layouts, transportation options, and airport procedures can help travelers reduce stress and move through the airport more efficiently.
TravelMozo will continue publishing airport guides, airline policies, and flight booking tips to help travelers make smarter travel decisions.
Frequently Asked Questions
How many terminals does O’Hare Airport have?
Chicago O’Hare currently operates four passenger terminals.
Which airlines use Terminal 1 at O’Hare?
Terminal 1 is primarily used by United Airlines and Star Alliance partners.
How do I get from O’Hare to downtown Chicago?
The CTA Blue Line train provides direct transportation between O’Hare and downtown Chicago.
Does O’Hare have airport lounges?
Yes, O’Hare offers multiple airline lounges and premium airport lounge facilities.