Everything you need to navigate Columbus: the official terminal map link, what airlines fly from each concourse, how to move between terminals, and gate-finding tips that save you backtracking. Verify your specific gate on your boarding pass — assignments change.

The CMH airport authority publishes the most up-to-date map on its official website. Use the link below before you travel so you know the terminal layout and gate locations before you clear security.
Official map
Columbus official terminal map — airport authority website
Maps are updated when terminals are renovated or new concourses open. Terminal 5 at LAX, for example, has been closed since October 2025 for reconstruction — always confirm your terminal from your boarding pass rather than relying on a saved map.
Here is what each terminal or concourse at CMH handles — which airlines fly from it, the gate range, and key amenities to know before you go.
Concourse A sits at the south end of CMH's single terminal building and is used exclusively by Southwest Airlines. Its own dedicated security checkpoint (open roughly 4am–8:30pm) leads to five gates, A2 through A6. Amenities include Chili's, Vino Volo wine bar, Donatos pizza, Starbucks, and the Scioto Mercantile travel-essentials shop.
Concourse B is CMH's largest concourse, at the center/east side of the terminal, serving American Airlines, United Airlines, Air Canada, and Spirit Airlines from roughly 14 gates numbered in the B19–B36 range. It has its own security checkpoint (roughly 4am–8pm) and the airport's largest dining and retail cluster, including Eddie George's Grille 27, Land-Grant Brewing Co., Wolfgang Puck Kitchen Counter, BrewDog, and the Escape Lounge near gate B32.
Concourse C is at the north end of the terminal and is the primary base for Delta Air Lines, along with Alaska Airlines, Breeze Airways, Frontier Airlines, Sun Country Airlines, and CMH's limited seasonal international/charter service (Cancun, Toronto, and Montreal starting 2026). It has its own security checkpoint (roughly 4am–8pm) and roughly 10–11 gates in the C46–C56 range; non-precleared international arrivals clear CMH's federal inspection (customs) facility here. Dining includes PGA TOUR Grill and American Craft Tavern, and the Jake Brewer USO Lounge sits near the Concourse C exit.
CMH has a single main terminal with two levels (upper = departures/ticketing, lower = arrivals/baggage claim) and three concourses — A, B, and C — that branch off the shared landside terminal. There is no airside connector: each concourse has its own independent TSA checkpoint, and the concourses are not linked past security. To reach a different concourse you must exit back into the landside terminal and clear that concourse's own checkpoint. Because the whole airport is compact, walking between concourses through the terminal only takes a few minutes.
Timing tip
Always allow 15–30 minutes for any inter-terminal transfer at CMH — wait times for people-movers, buses, or security re-screening add up faster than the physical distance suggests. Build the buffer into your Leave-By time, not your gate arrival time.
If you have a same-day connection at CMH, check whether your next flight leaves from a different concourse — if so, you'll need to exit past security and re-clear through that concourse's own checkpoint rather than walking over airside. The terminal is small enough that this rarely takes more than 10–15 minutes, but it's a real step, unlike hub airports with airside inter-concourse trains.
A few habits that prevent last-minute sprints:
Experienced travellers at CMH use a short checklist every time:
The official Columbus terminal map is on the airport authority website at https://flycolumbus.com/passengers/terminal-map/. Maps are updated when new gates or concourses open; always verify your specific gate on your boarding pass.
CMH has a single main terminal with two levels (upper = departures/ticketing, lower = arrivals/baggage claim) and three concourses — A, B, and C — that branch off the shared landside terminal. There is no airside connector: each concourse has its own independent TSA checkpoint, and the concourses are not linked past security. To reach a different concourse you must exit back into the landside terminal and clear that concourse's own checkpoint. Because the whole airport is compact, walking between concourses through the terminal only takes a few minutes.
If you have a same-day connection at CMH, check whether your next flight leaves from a different concourse — if so, you'll need to exit past security and re-clear through that concourse's own checkpoint rather than walking over airside. The terminal is small enough that this rarely takes more than 10–15 minutes, but it's a real step, unlike hub airports with airside inter-concourse trains. Your boarding pass shows the exact gate. Open your airline app about two hours before departure — gate assignments sometimes change after check-in closes. Look for departure boards throughout the terminal for real-time gate information.
Use the official interactive map at https://flycolumbus.com/passengers/terminal-map/ before you arrive to familiarise yourself with the layout. If you have a same-day connection at CMH, check whether your next flight leaves from a different concourse — if so, you'll need to exit past security and re-clear through that concourse's own checkpoint rather than walking over airside. The terminal is small enough that this rarely takes more than 10–15 minutes, but it's a real step, unlike hub airports with airside inter-concourse trains.
Concourse A: Concourse A sits at the south end of CMH's single terminal building and is used exclusively by Southwest Airlines. Its own dedicated security checkpoint (open roughly 4am–8:30pm) leads to five gates, A2 through A6. Amenities include Chili's, Vino Volo wine bar, Donatos pizza, Starbucks, and the Scioto Mercantile travel-essentials shop. Concourse B: Concourse B is CMH's largest concourse, at the center/east side of the terminal, serving American Airlines, United Airlines, Air Canada, and Spirit Airlines from roughly 14 gates numbered in the B19–B36 range. It has its own security checkpoint (roughly 4am–8pm) and the airport's largest dining and retail cluster, including Eddie George's Grille 27, Land-Grant Brewing Co., Wolfgang Puck Kitchen Counter, BrewDog, and the Escape Lounge near gate B32. Concourse C: Concourse C is at the north end of the terminal and is the primary base for Delta Air Lines, along with Alaska Airlines, Breeze Airways, Frontier Airlines, Sun Country Airlines, and CMH's limited seasonal international/charter service (Cancun, Toronto, and Montreal starting 2026). It has its own security checkpoint (roughly 4am–8pm) and roughly 10–11 gates in the C46–C56 range; non-precleared international arrivals clear CMH's federal inspection (customs) facility here. Dining includes PGA TOUR Grill and American Craft Tavern, and the Jake Brewer USO Lounge sits near the Concourse C exit.
Leave-By calculator
The TSA Wait Times Leave-By calculator folds the live CMH security wait, your drive time, and terminal navigation into one exact time to leave home — so you reach your gate without guessing.
See also: Live CMH TSA wait times · CMH terminals guide · CMH security tips