St Louis (STL) to Charleston (CHS) flights
Southwest Airlines flies nonstop from St. Louis Lambert International Airport to Charleston International Airport, with about 7 flights a week in July 2026. The 706-mile flight takes about 1h 52m gate to gate.
- Distance
- 706 mi · 1,136 km
- Flight time
- 1h 52m
- Airlines
- 1
- Seats filled
- 72%
Airlines flying STL to CHS
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 7 | Boeing 737-700 / MAX 7, Boeing 737-800, Boeing 737 MAX 8 | 18,412 | 1h 52m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
STL to CHS flight schedule
2 flight numbers flew this route in August 2026. The first usually leaves at 1:40pm and the last at 3:35pm. 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 1125Southwest Airlines | 1:40pm | 4:40pm | 4 | n/a |
| WN 4177Southwest Airlines | 3:35pm | 6:35pm | 16 | 44% |
Is STL to CHS on time?
From September 2025 to August 2026, 76% of 165 flights arrived within 15 minutes of schedule and 0% were cancelled. Flights leaving around 7am were the most punctual (94%), those around 11am the least (54%). Most delay time was caused by late-arriving aircraft (63%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 165 | 76% | 11 min | 0% |
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 | 17 | 94% | |
| 11am to 12pm | 13 | 54% | |
| 12pm to 1pm | 22 | 91% | |
| 2pm to 3pm | 58 | 72% | |
| 3pm to 4pm | 28 | 64% | |
| 5pm to 6pm | 14 | 86% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 19 | 1,992 | |
| September 2025 | 17 | 1,982 | |
| October 2025 | 4 | 520 | |
| March 2026 | 4 | 316 | |
| April 2026 | 25 | 3,040 | |
| May 2026 | 31 | 3,537 | |
| June 2026 | 31 | 3,661 | |
| July 2026 | 31 | 3,364 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.