๐บ๐ธ Columbus, United States of America
John Glenn Columbus International Airport (CMH/KCMH), named in honor of the legendary astronaut and U.S. Senator, is the primary commercial airport serving Columbus, Ohio. As one of the largest and busiest airports in the state, it acts as a significant hub for nationwide domestic travel and offers seasonal international connections to Canada and the Caribbean. The airport is a critical piece of infrastructure for the central Ohio region, supporting the diverse needs of both leisure travelers and business professionals visiting the area's many corporate headquarters and the Ohio State University.
The terminal at CMH is a unified structure featuring a central ticketing and arrivals hall that branches out into three distinct concourses: A, B, and C. Concourse A primarily handles Southwest Airlines, while Concourse B is home to American Airlines and United. Concourse C serves Delta Air Lines and additional regional carriers. Throughout the terminal, passengers have access to a wide array of modern amenities, including diverse dining options ranging from quick-service snack bars to full-service restaurants, a variety of retail shops, and high-quality Wi-Fi. The airport is also known for its extensive public art collection, which is prominently displayed throughout the terminal to enhance the passenger experience.
Operational capacity at John Glenn International is supported by two significant paved runways, with the longest (10L/28R) measuring approximately 3,125 meters in length, capable of handling large wide-body aircraft. Navigating through the terminal is relatively straightforward, as all concourses are connected via a centralized passenger corridor. For ground transportation, the airport is conveniently located just 10 kilometers from downtown Columbus, with a variety of options including official taxi services, frequent shuttle buses, and multiple car rental agencies located in the dedicated car rental center. Travelers are encouraged to use the designated rideshare pick-up zones, which are clearly signed and located just outside the terminal entrance.
John Glenn Columbus International Airport (CMH) is an easy airport to understand once you know one key detail: the terminal is divided into Concourses A, B, and C, and Fly Columbus publishes separate TSA checkpoint hours for each concourse rather than a single central checkpoint. For a connecting passenger, that matters because your planning should start with the departing concourse, not just the airport name. If you reach the wrong checkpoint area or leave security for food, pickups, or bag issues, you may add unnecessary time to the connection.
CMH is still far simpler than a mega-hub. Distances are short, the terminal is compact, and official guidance recommends arriving at least 90 minutes before domestic departure and two hours before international departure. That is a useful baseline for self-transfers as well. The airport handles most domestic connections smoothly when both flights are on one ticket and use the same general side of the terminal, but separate-ticket itineraries deserve a bigger cushion, especially if checked bags, weather disruption, or late inbound arrivals are involved.
A practical rule at Columbus is to verify your departing concourse before you clear security and again after any gate change. If you are switching airlines, traveling with children, or moving during a morning or holiday rush, give yourself more time than the airport's compact size suggests. CMH rewards passengers who know their checkpoint, monitor gate changes, and avoid treating a three-concourse airport like a single undifferentiated post-security hall.
โข Rideshare pickโup zones are signed; multiple dining options postโsecurity.
โข Check your flight status before leaving for the airport.
โข Allow extra time during peak travel periods at this airport.
โข Keep important documents easily accessible at this airport.
โข Download your airline's mobile app for updates at this airport.
Minimum domestic connection:
45 minutes
International connections:
90 minutes
Interline transfers:
150 minutes
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Last updated: April 2026 | Data Source: IATA and other airline sites and resources