The most convenient way to get into Cincinnati, particularly for people coming from far distances, would be to fly into Cincinnati / Northern Kentucky International Airport. The airport is located across the river in Hebron, KY, but is just a ten-minute driver away from the Cincinnati CBD. The airport is one of the busiest in the Ohio and Kentucky area as it server over 160,000 flights and seven million passengers each year. About a dozen different airlines operate flights in and out of the airport, which provide direct flights to several different major American cities including Atlanta, Chicago, Dallas, and Charlotte.
Due to its centric location in the Eastern half of the United States, driving into Cincinnati could be a great option for many people. Interstates 74, 75, 71, and 275 all run in or around the city. Drivers could connect to a few different major cities in the region in a short period of time. Indianapolis, IN is located only about 90 minutes away, Columbus, OH is located just about two hours away, Louisville, KY is located only two hours away, and Cleveland, OH is located around four hours away.
Another option for getting into the city would be to take a train. The Amtrak train line has a stop located in the city's downtown area at Cincinnati Union Station. Direct train lines are available to several cities including Chicago, Philadelphia, New York, and Washington DC. Ultimately, a traveler could connect to any city in the US by taking the Amtrak.
Once inside the city, there are a few options for getting to your final destination. The city is served by the Southwest Ohio Regional Transit Authority, which operates a transit bus service. There are a total of over 50 bus lines, which run throughout Cincinnati and some of the other surrounding communities. On a daily basis, over 20,000 passengers use the bus.
Another public transportation option in the area is to use the Transit Authority of Northern Kentucky. This bus system largely operates in the Northern Kentucky area, but does have several bus routes that connect into Cincinnati. This bus system has a total of 27 different bus lines and server over 3.5 million passengers on an annual basis. One bus route also runs directly into the airport, which can then provide an affordable public transportation option to and from the airport.