Historical on-time performance
Charlotte to St. Louis
575 miData through Dec 2025Source: US DOT · BTS
Flights on CLT–STL arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights
based on 1,789 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- American AirlinesOn-time75%Medianon timep9050 minCancel1.4%Flights1,636
- Southwest AirlinesOn-time73%Medianon timep9050 minCancel0.7%Flights153
Why flights run late
Delay causes
- Airline29%
- Weather5%
- Air traffic (NAS)9%
- Late aircraft58%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly CLT → STL
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 66% to 85% on time.
- Mornings85% on time · p90 20 min · 1,042 flights
- Middays82% on time · p90 30 min · 1,421 flights
- Afternoons69% on time · p90 55 min · 1,058 flights
- Evenings68% on time · p90 70 min · 1,347 flights
- Overnights66% on time · p90 70 min · 1,003 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 79% on time.
- Wednesdays79% on time · p90 45 min · 825 flights
- Tuesdays79% on time · p90 40 min · 802 flights
- Saturdays73% on time · p90 55 min · 733 flights
- Thursdays73% on time · p90 50 min · 874 flights
- Fridays73% on time · p90 50 min · 875 flights
- Mondays72% on time · p90 55 min · 883 flights
- Sundays72% on time · p90 55 min · 881 flights
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