STL to CLT flight delays & on-time performance
Nonstop flights from St. Louis Lambert International Airport to Charlotte Douglas International Airport · 575 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at STL or CLT right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from St. Louis (STL) to Charlotte (CLT) arrived on time 84% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.4% were cancelled, and 7% arrived an hour or more late.
- American Airlines was the most punctual airline here (85% on time); Southwest Airlines was the least (74%).
- Departures scheduled around 5am did best (97% on time); around 4pm did worst (70%).
- Wednesday was the most reliable day to fly (87% on time) and Monday the least (78%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (47%).
Which airline is most on time from STL to CLT?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| American Airlines | 85% | 1.3% | 16 min | 6.8% | 1,498 |
| PSA AirlinesRegional airline operating American Eagle flights. | 84% | 6.4% | 31 min | 6.8% | 78 |
| Southwest Airlines | 74% | 0.4% | 15 min | 5.4% | 259 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am97%148 flights
- 6am92%110 flights
- 7am87%256 flights
- 8am88%108 flights
- 9am90%252 flights
- 10am80%97 flights
- 12pm74%108 flights
- 1pm81%63 flights
- 2pm81%216 flights
- 3pm73%107 flights
- 4pm70%109 flights
- 5pm81%54 flights
- 6pm80%199 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday78%1.5% cancelled
- Tuesday87%1.6% cancelled
- Wednesday87%0.4% cancelled
- Thursday85%0.0% cancelled
- Friday83%0.7% cancelled
- Saturday82%2.2% cancelled
- Sunday84%3.6% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)47%
- Late-arriving aircraft43%
- Extreme weather6%
- Air traffic control & airport congestion5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather88%
- Air traffic control & airport congestion8%
- Airline (crew, maintenance, cleaning, fueling)4%
- Security0%
STL to CLT: common questions
- How often are STL to CLT flights on time?
- 84% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from St. Louis to Charlotte cancelled?
- 1.4% of scheduled flights were cancelled (26 of 1,835).
- How long are typical delays?
- Across all flights the average arrival delay was 17 min (early arrivals count as zero). Flights that were late arrived 98 min behind schedule on average, and 6.6% of flights were an hour or more late.
- How long is taxi time at STL?
- Flights on this route spent 12 min taxiing from the gate to takeoff on average.
Related routes
Return trip: CLT to STL — 80% on time
More flights from St. Louis
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: STL → CLT, nonstop flights by US airlines that report to the DOT. How we calculate this.