St. Louis (STL) to Charlotte (CLT): On-Time Performance
Data through May 2026
When you fly STL to CLT matters as much as anything else about the booking: the route swung from 92% on-time in April 2026 to just 59% in July 2024. Across the full period the route averages 82% on-time against a national 78%. Morning departures also hold up better than evening ones (89% vs 70%), which matters most in the rough months.
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 1.4%
- Flights/day
- 5.0
- last 12 months
- Duration
- 1h 54m
- scheduled
- Distance
- 575 mi
Best airline from STL to CLT
3 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| PSA Airlinesmost reliable | 86% | 35 min | 6.7% | 75 |
| American Airlines | 83% | 19 min | 1.5% | 3,197 |
| Southwest Airlines | 77% | 13 min | 0.3% | 609 |
Monthly on-time trend
Best time to fly from STL to CLT
Aim for departures around 5 a.m. (93% on-time); avoid 5 p.m. departures (64%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 82% | 15 min |
| Tuesdaybest | 84% | 17 min |
| Wednesday | 84% | 21 min |
| Thursday | 81% | 16 min |
| Friday | 80% | 19 min |
| Saturday | 83% | 17 min |
| Sunday | 80% | 21 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft44%
- Airline operations42%
- National airspace system9%
- Weather5%
Frequently asked questions
- How often are flights from STL to CLT delayed?
- 18% of STL–CLT flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 18 minutes.
- Which airline is most reliable from STL to CLT?
- PSA Airlines has the best on-time record on this route at 86%, based on 75 flights. 3 airlines flew STL–CLT frequently enough to compare in this period.
- What is the best time of day to fly from STL to CLT?
- Departures around 5 a.m. have the best record (93% on-time), while departures around 5 p.m. have the worst (64%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from STL to CLT?
- The scheduled STL–CLT flight time averages 1h 54m over 575 miles. Actual arrival times vary — flights on this route land 15+ minutes late 18% of the time.
- How often are STL to CLT flights cancelled?
- 1.4% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from STL to CLT?
- July 2024 was the roughest month in this dataset, with only 59% of arrivals on time. The best was April 2026 at 92%. If your dates are flexible, that 33-point gap is worth planning around.
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Based on 3,881 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.