Which city is associated with the airport code CVG?

The airport code CVG is associated with Cincinnati, Ohio, which corresponds to the Cincinnati/Northern Kentucky International Airport. This airport serves not only Cincinnati but also the surrounding areas, making it a key travel hub for the region. The choice of CVG as the airport code derives from the historical and geographical context; CVG represents the greater Cincinnati area as well as its location near the Kentucky border.

In contrast, the other options are incorrect because they refer to different airports in their respective cities. Dayton has its own airport code (DAY), Columbus is served by John Glenn Columbus International Airport (CMH), and Charleston, West Virginia, is served by Yeager Airport (CRW). Each of these cities has its unique identifiers based on their respective airports, thus confirming that CVG is distinctly tied to Cincinnati, Ohio.