What is the approximate distance between terminals at O'Hare Airport?

The approximate distance between terminals at O'Hare Airport is indeed around 0.5 miles. This distance reflects the airport's design, which allows for relatively close proximity among its terminals, facilitating ease of transfer between them for passengers. The terminals are arranged in a way that minimizes the need for long walks or extensive travel times, which is crucial in a busy airport setting where travelers may need to connect quickly to other flights or services.

The other distances, such as 1 mile, 1.5 miles, and 2 miles, would imply a much larger separation than what is actually the case at O'Hare, where effective layout and transportation services are designed to streamline passenger movement throughout the airport.