CLT to STL flight delays & on-time performance
Nonstop flights from Charlotte Douglas International Airport to St. Louis Lambert International Airport · 575 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at CLT or STL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Charlotte (CLT) to St. Louis (STL) arrived on time 80% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.5% were cancelled, and 7% arrived an hour or more late.
- Southwest Airlines was the most punctual airline here (82% on time); American Airlines was the least (79%).
- Departures scheduled around 7am did best (90% on time); around 6pm did worst (71%).
- Wednesday was the most reliable day to fly (89% on time) and Monday the least (69%).
- The largest source of delay minutes was late-arriving aircraft (53%).
Which airline is most on time from CLT to STL?
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 |
|---|---|---|---|---|---|
| PSA AirlinesRegional airline operating American Eagle flights. | 85% | 6.4% | 12 min | 5.6% | 78 |
| Southwest Airlines | 82% | 0.8% | 13 min | 6.2% | 260 |
| American Airlines | 79% | 1.4% | 15 min | 7.7% | 1,496 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am90%231 flights
- 8am84%151 flights
- 11am78%160 flights
- 12pm86%176 flights
- 1pm75%92 flights
- 2pm78%57 flights
- 3pm88%34 flights
- 4pm71%239 flights
- 5pm88%145 flights
- 6pm71%263 flights
- 7pm75%24 flights
- 9pm86%22 flights
- 10pm79%222 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday69%2.6% cancelled
- Tuesday87%0.8% cancelled
- Wednesday89%0.4% cancelled
- Thursday79%0.4% cancelled
- Friday78%0.4% cancelled
- Saturday78%3.0% cancelled
- Sunday79%3.2% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft53%
- Airline (crew, maintenance, cleaning, fueling)33%
- Air traffic control & airport congestion8%
- Extreme weather6%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather89%
- Air traffic control & airport congestion7%
- Airline (crew, maintenance, cleaning, fueling)4%
- Security0%
CLT to STL: common questions
- How often are CLT to STL flights on time?
- 80% 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 Charlotte to St. Louis cancelled?
- 1.5% of scheduled flights were cancelled (28 of 1,834).
- How long are typical delays?
- Across all flights the average arrival delay was 15 min (early arrivals count as zero). Flights that were late arrived 68 min behind schedule on average, and 7.4% of flights were an hour or more late.
- How long is taxi time at CLT?
- Flights on this route spent 18 min taxiing from the gate to takeoff on average.
Related routes
Return trip: STL to CLT — 84% on time
More flights from Charlotte
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: CLT → STL, nonstop flights by US airlines that report to the DOT. How we calculate this.