St Louis (STL) to Columbus (CMH) flights
Southwest Airlines flies nonstop from St. Louis Lambert International Airport to John Glenn Columbus International Airport, with about 13 flights a week in July 2026. The 409-mile flight takes about 1h 16m gate to gate.
- Distance
- 409 mi · 658 km
- Flight time
- 1h 16m
- Airlines
- 1
- Seats filled
- 66%
Airlines flying STL to CMH
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 13 | Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Boeing 737-800 | 68,166 | 1h 16m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
STL to CMH flight schedule
3 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 10:10am and the last at 6:50pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| WN 3185Southwest Airlines | 10:10am | 12:30pm | 12 | 82% |
| WN 3818Southwest Airlines | 10:15am | 12:35pm | 8 | n/a |
| WN 3940Southwest Airlines | 6:50pm | 9:10pm | 24 | 50% |
Is STL to CMH on time?
From September 2025 to August 2026, 80% of 668 flights arrived within 15 minutes of schedule and 0.3% were cancelled. Flights leaving around 8am were the most punctual (94%), those around 7pm the least (59%). Most delay time was caused by late-arriving aircraft (54%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 668 | 80% | 11 min | 0.3% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 7am to 8am | 71 | 90% | |
| 8am to 9am | 101 | 94% | |
| 9am to 10am | 27 | 89% | |
| 10am to 11am | 128 | 92% | |
| 6pm to 7pm | 142 | 71% | |
| 7pm to 8pm | 61 | 59% | |
| 8pm to 9pm | 126 | 70% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 56 | 5,941 | |
| September 2025 | 56 | 6,303 | |
| October 2025 | 58 | 6,511 | |
| November 2025 | 54 | 5,502 | |
| December 2025 | 58 | 5,316 | |
| January 2026 | 55 | 4,663 | |
| February 2026 | 50 | 4,680 | |
| March 2026 | 58 | 5,766 | |
| April 2026 | 56 | 5,715 | |
| May 2026 | 57 | 5,434 | |
| June 2026 | 57 | 6,413 | |
| July 2026 | 59 | 5,922 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.