CMH Airport: What to Know About John Glenn Columbus International
Columbus airport discussions have gotten complicated with all the “what is the actual passenger experience at CMH versus flying through Cleveland or Cincinnati for the same destinations” debates, the John Glenn Columbus International versus Port Columbus historical naming comparisons, and “what does CMH actually offer in terms of airlines, concourses, and connectivity for both business and leisure travelers in central Ohio” conversations flying around. As someone who has spent years following Ohio aviation infrastructure and the specific carrier strategies that determine which mid-sized hub airports build route networks worth using versus which remain perennial connecting-market disappointments, I learned everything there is to know about CMH — John Glenn Columbus International Airport. Today, I will share it all with you.
But what is CMH, really? In essence, it’s the primary commercial service airport for Columbus and central Ohio — a mid-sized international airport handling approximately 10 million annual passengers from three concourses, with nonstop service to major hubs and select leisure destinations provided by American, Delta, Southwest, United, and Spirit among others. But it’s much more than a regional airport. For the Columbus business traveler and the central Ohio leisure traveler, CMH offers the combination of genuine nonstop connectivity to hub airports and a passenger experience that routinely outperforms airports three times its size in terms of security wait times, parking convenience, and overall ease of use.
The Airport’s Name and History
John Glenn Columbus International Airport was known as Port Columbus International Airport from its opening in 1929 until the 2016 renaming honoring Ohio astronaut and U.S. Senator John Glenn, who died in December 2016. The airport’s IATA code CMH — Columbus Municipal Hangar, the original designation — has remained unchanged through the name transition. Don’t make my mistake of treating the CMH code as a historical artifact to be confused about — at least if you’re booking flights to Columbus, because CMH is the consistent identifier across all booking systems and flight tracking regardless of which version of the airport’s full name appears on your ticket.
Concourses and Layout
CMH operates three concourses — A, B, and C — all accessible from the main terminal without requiring inter-concourse transit after security. Concourse A and B handle the majority of mainline carrier operations: American, Delta, and United gates are primarily located in these concourses serving connections to Philadelphia, Charlotte, Atlanta, Detroit, and Chicago O’Hare and Midway. Concourse C houses Southwest operations. That’s what makes CMH’s compact layout endearing to frequent travelers who use it as a home airport — the walking distances from security to gates are short by major airport standards, and the absence of inter-terminal transit requirements that characterize larger airports saves meaningful time on every departure.
Airlines and Route Network
CMH’s route network reflects Columbus’s status as a major Midwestern business market: nonstop service to all five major hub cities (Atlanta, Chicago, Dallas, New York, Philadelphia) gives connecting access to essentially the entire domestic network. Direct leisure routes to Florida destinations (Orlando, Fort Lauderdale, Tampa) and select Sun Belt destinations support the leisure demand from central Ohio. International service has historically been limited — Air Canada provides Toronto connectivity enabling Canadian transborder service — though CMH has attracted seasonal international charter operations for certain leisure markets. First, you should verify nonstop availability before assuming CMH offers direct service to your destination — at least if you’re routing through Columbus rather than a major hub, because the mid-sized market reality means some routes that appear direct are technically one-stop itineraries marketed as through-fares.
Getting To and From CMH
CMH sits approximately 8 miles east of downtown Columbus via I-670, with typical drive times of 15-20 minutes in normal traffic. Short-term and long-term parking is available in the attached garage structure directly connected to the terminal. Ground transportation options include taxi, rideshare pickup in the designated area outside baggage claim, and rental car facilities. The airport is not currently served by Columbus’s COTA bus rapid transit in a way that provides convenient direct connectivity, making personal vehicle or rideshare the practical ground transportation choice for most travelers.
Airport Facilities and the Passenger Experience
CMH earned recognition in J.D. Power North America Airport Satisfaction Studies consistently ranking it among the top airports for medium-sized airports. The security checkpoint experience at CMH benefits from the volume mismatch — a facility built for higher capacity than it currently handles means TSA checkpoint wait times that regularly run under 15 minutes even during peak morning banks. The concourse dining and retail options are solid for an airport of CMH’s size, with local Columbus restaurant concepts complementing standard airport retail. For the Columbus-based traveler who has experienced the chaos of ORD or ATL during irregular operations, CMH’s manageable scale is a genuine quality-of-life advantage worth factoring into routing decisions when the nonstop option exists.
