Are Chicago terminals connected?

Are Chicago's Airport Terminals Connected? The Short Answer is: Sometimes.

Navigating Chicago's O'Hare International Airport (ORD) can be confusing, especially when it comes to connecting flights. While some terminals offer easy connections, others require more effort. Understanding the layout can save you valuable time and stress. So, are Chicago's terminals connected? Here's a breakdown:

The good news is that Terminals 1, 2, and 3 are indeed connected airside. This means you can easily walk between them without having to re-enter security. This is a major benefit for passengers with connecting flights within these terminals, especially if they're on a tight schedule. This interconnected area is often referred to as the "secure side" or "sterile area." Clear signage within the terminals directs passengers to connecting gates.

However, if your connecting flight is in Terminal 5 (International Terminal) or you're arriving internationally and connecting to a domestic flight, the process is different. You will need to exit security, collect your baggage (if applicable), and then proceed to the appropriate terminal using the Airport Transit System (ATS). The ATS is a free automated train that operates 24/7 and connects all terminals. While efficient, this transfer does add extra time to your journey. Therefore, it's crucial to allow ample connection time when transferring to or from Terminal 5.

Furthermore, while Terminals 1, 2, and 3 are physically connected, airline policies can complicate matters. If your connecting flights are with different airlines, even within Terminals 1, 2, or 3, you may still need to exit security and re-check your baggage. This is particularly true when connecting between a full-service carrier and a low-cost carrier. Always confirm the specific procedures with your airlines before arriving at the airport to avoid any surprises. Don't hesitate to ask airline staff for assistance if you are unsure.

In short, while the physical connections between some terminals at O'Hare simplify travel, airline procedures and the separation of Terminal 5 require careful planning. Checking with your airlines regarding baggage and security procedures for connecting flights, particularly between different carriers, is highly recommended.