In the example DEN-ATL-CVG, how many legs does the flight contain?

The flight example DEN-ATL-CVG consists of segments from Denver (DEN) to Atlanta (ATL), and then from Atlanta (ATL) to Cincinnati (CVG). Each segment between two cities is referred to as a "leg" of the flight.

In this case, the first leg is from Denver to Atlanta, and the second leg is from Atlanta to Cincinnati. Thus, there are a total of two legs in this itinerary. Understanding that each segment connecting different airports in a multi-stop itinerary counts as a separate leg is crucial in determining the total number of legs for the journey.