Southwest AirlinesWN75% on time
Flights WN1785 07:20 Mo Th Fr · WN1656 19:25 Tu We · WN4203 varies daily
live
Direct flights from Columbus (CMH) to St Louis (STL): 7 nonstop departures observed each week across 1 airline. 79% of the last 14 operated flights arrived within 15 minutes of schedule. The median arrival is 12 minutes early. No cancellations were recorded across the 14 tracked flights. The nonstop covers 657 km, an estimated 1 hour 21 minutes in the air. Measured by Pro Flight Search from live flight boards at Columbus and St Louis. Updated 11 September 2026 at 12:53 UTC.
CMH
Columbus
heavy · +52
STL
St Louis
smooth · +0
657 km · ~1h 21m est.
Runs mixed · 1 airline · 7x weekly · nonstop
79% on time
of the last 14 operated CMH → STL flights arrived within 15 minutes
Median arrival delay is −12 min. 0 of 14 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−12 minacross the last 14 operated legs
Flight time~1h 21mestimated from route distance
Weekly departures7x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 14
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Southwest Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomes09-101I15arrived+0
09-101I412arrived−8
Actual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at CMH and STL: 44% odds of a 15+ minute delay and around +9 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Columbus to St Louis route actually runs
Pro Flight Search records official board updates for nonstop CMH to STL flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Columbus (CMH) to St Louis (STL) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/CMH-STL
CMH to STL questions
Is CMH–STL running on time right now?
Some delays possible. The departure side at CMH is the weaker end, route health score 65/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on CMH–STL?
Operators schedule morning departures around 07:20 and evening departures around 19:25 from CMH. Earlier flights typically land before destination-airport delays accumulate later in the day; check the STL delay card to confirm conditions when you'd arrive.
How long is the flight from CMH to STL?
Great-circle distance is 657 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 76–86 min gate-to-gate on this route.
How often does CMH–STL fly?
Southwest Airlines runs the route with about 12 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
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