John Glenn Columbus International Airport
John Glenn Columbus International Airport (KCMH/CMH) is a large international airport located in Columbus, OH. It features 2 runways with the longest being 10,125 feet. SkyMeter has observed roughly 126 arrivals and 128 departures per day on average over the last 7 days, served by 30 carriers across 70 routes. The most active carrier is Republic Airlines (RPA). The busiest route is to Chicago O'Hare International Airport (KORD). On-time performance averages 72% with an average delay of 12 minutes against scheduled times. At the busiest hour of an average day, we calculated that a plane takes off or lands roughly every 171 seconds.
Safety incidents
Last 7 days · 0 total
Current weather
Latest METAR observation
Runways
2 installed
Delays by hour
Avg minutes · local time · last 30 days
Top carriers
Share of flights
Top destinations
By flight count
Carriers
Show 34 more carriers →
ENY
Communications Frequencies
2026-06-11| Type | Freq (MHz) | Hours |
|---|---|---|
| TWR | 132.700 | 24 |
| TWR | 257.800 | 24 |
| GND | 121.900 | 24 |
| GND | 348.600 | 24 |
| ATIS | 124.600 | 24 |
| APCH | 125.950 | 24 |
| APCH | 134.000 | 24 |
| APCH | 279.600 | 24 |
| APCH | 317.775 | 24 |
| APCH | 371.975 | 24 |
| UNICOM | 122.950 | — |
| ASOS | 124.600 | — |
| EMERG | 121.500 | 24 |
| COLUMBUS | 122.200 | — |
| OTHER | 122.200 | — |
| OPS | 122.775 | 24 |
| OTHER | 122.775 | 24 |
| CBUSS ST | 125.950 | 24 |
| CLASS C | 125.950 | 24 |
| DUBLN ST | 125.950 | 24 |
| OTHER | 125.950 | 24 |
| CD/P | 126.300 | 24 |
| OTHER | 126.300 | 24 |
| LCL/P | 132.700 | 24 |
| CLASS C | 134.000 | 24 |
| CLPRR ST | 134.000 | 24 |
| JAKTZ ST | 134.000 | 24 |
| SCRLT ST | 134.000 | 24 |
| OTHER | 134.000 | 24 |
| EMERG | 243.000 | 24 |
| LCL/P | 257.800 | 24 |
| CLASS C | 279.600 | 24 |
| CLASS C | 317.775 | 24 |
| CBUSS ST | 371.975 | 24 |
| DUBLN ST | 371.975 | 24 |
| OTHER | 371.975 | 24 |
Airport operations
- ARTCC:
- ZID
- Elevation:
- 815 ft
- Mag var:
- 7° W
- Fuel:
- 100, A1+
Destination network
Great-circle routes from KCMH · last 7d
Hourly traffic
Avg movements per hour · local time · last 30 days
Top routes
Click any segment for full inspection
| Route | Operator | Flights | Avg enroute |
|---|---|---|---|
CMHLGA New York, US |
RPA
Republic Airlines |
64 | 1h 30m |
CMHATL Atlanta, US |
DAL
Delta AIR Lines |
63 | 1h 16m |
CMHEWR Newark, US |
RPA
Republic Airlines |
49 | 1h 24m |
CMHDTW Detroit, US |
RPA
Republic Airlines |
49 | 0h 40m |
CMHCLT Charlotte, US |
AAL
American Airlines |
44 | 1h 1m |
CMHJFK New York, US |
RPA
Republic Airlines |
42 | 1h 33m |
CMHORD Chicago, US |
ENY
Envoy AIR |
42 | 1h 1m |
CMHORD Chicago, US |
UAL
United Airlines |
39 | 0h 57m |
CMHORD Chicago, US |
RPA
Republic Airlines |
35 | 1h 3m |
CMHBOS Boston, US |
RPA
Republic Airlines |
34 | 1h 46m |
CMHDFW Dallas-Fort Worth, US |
AAL
American Airlines |
33 | 2h 13m |
CMHDCA Washington, US |
RPA
Republic Airlines |
32 | 1h 8m |
CMHPHL Philadelphia, US |
AAL
American Airlines |
31 | 1h 6m |
CMHMDW Chicago, US |
SWA
Southwest Airlines Co. (SAN Antonio |
31 | 0h 51m |
CMHBWI Baltimore, US |
SWA
Southwest Airlines Co. (SAN Antonio |
28 | 0h 58m |
CMHBNA Nashville, US |
SWA
Southwest Airlines Co. (SAN Antonio |
26 | 0h 56m |
CMHMSP Minneapolis, US |
DAL
Delta AIR Lines |
25 | 1h 46m |
CMHMCO Orlando, US |
SWA
Southwest Airlines Co. (SAN Antonio |
24 | 1h 58m |
CMHDEN Denver, US |
SWA
Southwest Airlines Co. (SAN Antonio |
23 | 2h 38m |
CMHAUS Austin, US |
SWA
Southwest Airlines Co. (SAN Antonio |
21 | 2h 30m |