By plane
Port Columbus International Airport
Port Columbus IATA: CMH is served by all the major airlines, with direct flights to most major American cities. Aside from rental cars, the airport can also be reached by the #92 bus, or by taxi. A taxi ride to downtown is only 10 minutes and will cost approximately $25. Depending on your schedule and where you are connecting to, it may be worthwhile to check flights to Dayton as well, as they are often cheaper.
Rickenbacker International Airport
Passenger charter terminal/2241 john circle dr. +1 614 239-4000. (http://www.rickenbacker.o...) charter flights.
Megabus
+1 877 462-6342, (http://us.megabus.com). Service to Columbus from Cincinnati, Indianapolis, and Chicago. Fares start at $1. Buses arrive and depart downtown Columbus near the northwest corner of Nationwide Boulevard and High Street. Buses also serve Ohio State University from a stop at the Ohio Union building on the west side of the intersection of High Street and 12th Avenue.
By car
Major highways include I-71 & Rte. 315 north and south, I-70 & I-670 east and west, and the outer-belt, I-270. US Routes 33, 23, and 40 also converge downtown.