Cincinnati is a hub for Delta airlines and has convenient flights from all major airports. The Cincinnati metro area has a population of over 1 million and is the third largest city in Ohio. Located on the banks of the Ohio River, the city offers many attractions that include the National Underground Railroad Freedom Center, Cincinnati History and Natural History Museum, Art Museum, Aronoff Center for the Performing Arts, Krohn Conservatory, Aquarium, Zoo, Children’s Museum, and Kings Island Amusement Park. The temperatures in Cincinnati are expected to be pleasant during May with average high 75oF (24oC) and low 53oF (12oC).