CMH to STL: Distance and Flight Time
The distance from John Glenn Columbus International Airport (CMH) to St. Louis Lambert International Airport (STL) is 657 km (408 mi). A typical nonstop flight covers it in about 1h 20m, heading west. The distance is the same in either direction (STL to CMH).
How far is it from Columbus to St Louis?
The great-circle distance between John Glenn Columbus International Airport (CMH) and St. Louis Lambert International Airport (STL) is 657 km (408 mi, 355 nautical miles). That is the straight-line distance; a real flight is a little longer because of air-traffic routing.
How long is the flight from CMH to STL?
A nonstop flight typically takes about 1h 20m. This is an estimate from the distance; actual block times depend on the aircraft, winds and the exact routing. STL is roughly west of CMH.
How is the CMH to STL route written in code?
The pair is written CMH-STL in IATA codes and KCMH-KSTL in ICAO codes, the form used on a flight plan. John Glenn Columbus International Airport is CMH (KCMH), St. Louis Lambert International Airport is STL (KSTL).
| CMH | STL | |
|---|---|---|
| Airport | John Glenn Columbus International Airport | St. Louis Lambert International Airport |
| ICAO code | KCMH | KSTL |
| Country | United States | United States |
| Elevation | 815 ft | 618 ft |
| Rank by connections | #253 | #145 |
Both ICAO codes start with K, the prefix ICAO assigns to the contiguous United States, so this is a route inside one ICAO region. How ICAO prefixes are laid out.
STL sits 197 ft (60 m) lower than CMH, which is a real difference in air density on takeoff.
Airlines flying CMH to STL
1 airline appear on this route in the open route dataset, 1 of them still listed as active. Each row gives the IATA code, the ICAO code and the radio callsign, which is what an air traffic controller hears:
| IATA | Airline | ICAO | Callsign | Status |
|---|---|---|---|---|
| WN | Southwest Airlines | SWA | Southwest | Active |
A further 1 carrier sell this pair as a codeshare without operating it: FL.
Route and carrier data comes from the OpenFlights open dataset, regenerated here on . It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.
Frequently asked questions
How far is Columbus from St Louis?
John Glenn Columbus International Airport (CMH) and St. Louis Lambert International Airport (STL) are 657 km (408 mi, 355 nautical miles) apart in a straight line.
How long is the flight from CMH to STL?
A typical nonstop flight between CMH and STL takes about 1h 20m. Actual times vary with aircraft type, winds and routing.
What direction is STL from CMH?
St. Louis Lambert International Airport (STL) lies roughly west of John Glenn Columbus International Airport (CMH).
Which airlines fly CMH to STL?
1 airline appear on the CMH-STL route in the open dataset, including Southwest Airlines.
Related routes
Other routes from Columbus (CMH):
Other routes from St Louis (STL):
CMH airport code · STL airport code · Busiest airports worldwide