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 137 arrivals and 138 departures per day on average over the last 7 days, served by 37 carriers across 93 routes. The most active carrier is Republic Airlines (RPA). The busiest route is to Chicago O'Hare International Airport (KORD). On-time performance averages 9% with an average delay of 60 minutes against scheduled times. At the busiest hour of an average day, we calculated that a plane takes off or lands roughly every 180 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 |
82 | 1h 31m |
CMHATL Atlanta, US |
DAL
Delta AIR Lines |
65 | 1h 18m |
CMHORD Chicago, US |
ENY
Envoy AIR |
55 | 0h 59m |
CMHORD Chicago, US |
UAL
United Airlines |
49 | 1h 2m |
CMHJFK New York, US |
RPA
Republic Airlines |
46 | 1h 45m |
CMHEWR Newark, US |
RPA
Republic Airlines |
40 | 1h 30m |
CMHBOS Boston, US |
RPA
Republic Airlines |
37 | 1h 51m |
CMHCLT Charlotte, US |
AAL
American Airlines |
36 | 1h 0m |
CMHDTW Detroit, US |
RPA
Republic Airlines |
35 | 0h 40m |
CMHDFW Dallas-Fort Worth, US |
AAL
American Airlines |
33 | 2h 14m |
CMHMDW Chicago, US |
SWA
Southwest Airlines Co. (SAN Antonio |
33 | 0h 49m |
CMHDCA Washington, US |
RPA
Republic Airlines |
32 | 1h 10m |
CMHORD Chicago, US |
RPA
Republic Airlines |
30 | 1h 1m |
CMHMSP Minneapolis, US |
DAL
Delta AIR Lines |
29 | 1h 48m |
CMHBNA Nashville, US |
SWA
Southwest Airlines Co. (SAN Antonio |
28 | 0h 55m |
CMHBWI Baltimore, US |
SWA
Southwest Airlines Co. (SAN Antonio |
25 | 1h 2m |
CMHPHL Philadelphia, US |
AAL
American Airlines |
24 | 1h 7m |
CMHDEN Denver, US |
SWA
Southwest Airlines Co. (SAN Antonio |
22 | 2h 38m |
CMHMCO Orlando, US |
SWA
Southwest Airlines Co. (SAN Antonio |
21 | 1h 54m |
CMHDTW Detroit, US |
SKW
SKY West Aviation |
19 | 0h 41m |