John Glenn Columbus International Airport
Columbus, United States — flight times and distances to airports around the world, computed from published coordinates.
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
How this is worked out
- Both airports' coordinates come from OurAirports, a public-domain dataset — nothing is scraped from another flight site.
- Distance is a great-circle (haversine) figure on a mean earth radius of 6,371.0088 km, so it is the shortest path over the surface, not a road distance.
- Airborne time is that distance divided by 805 km/h, a representative jet cruise speed.
- A flat 25 minutes is added for pushback, taxi, climb, descent and taxi-in, which is why no hop is ever half an hour gate to gate.
- Winds, aircraft type and airline schedule padding are not modelled, and every route page shows the same distance at four cruise speeds so you can see what that assumption is worth.
gate-to-gate hours = 0.42 + distance km / 805
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
Flight times from CMH to the nearest major hubs
Great-circle distance and estimated flight time to the closest large international airports — the realistic connecting points from Columbus.
| Hub | Code | Distance | Flight time |
|---|---|---|---|
| Detroit, United States | DTW | 249 km | 44m |
| Chicago, United States | MDW | 454 km | 59m |
| Chicago, United States | ORD | 475 km | 1h 01m |
| Dulles, United States | IAD | 481 km | 1h 01m |
| Toronto, Canada | YYZ | 490 km | 1h 02m |
| Washington, United States | DCA | 519 km | 1h 04m |
| Baltimore, United States | BWI | 541 km | 1h 06m |
| Nashville, United States | BNA | 543 km | 1h 06m |
| Charlotte, United States | CLT | 559 km | 1h 07m |
| Philadelphia, United States | PHL | 652 km | 1h 14m |
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
Questions about CMH
What is the airport code for Columbus?
John Glenn Columbus International Airport uses the IATA code CMH and the ICAO code KCMH. IATA codes are the three-letter ones on your boarding pass; ICAO codes are four letters and used by air traffic control.
Where is John Glenn Columbus International Airport?
It sits at 39.9980° N, 82.8919° W, serving Columbus in United States, at an elevation of 815 feet.
Data from OurAirports (public domain) · Wikipedia. Flight times are great-circle estimates for planning only — always check the airline's published schedule.
