Historical on-time performance
St. Louis to Charlotte
575 miData through Dec 2025Source: US DOT · BTS
Flights on STL–CLT arrive on time 82% of the time over the last 12 months.
On-time rate82%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights
based on 1,758 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-time82%Medianon timep9040 minCancel1.3%Flights1,637
- Southwest AirlinesOn-time79%Medianon timep9035 minCancel0.0%Flights121
Why flights run late
Delay causes
- Airline42%
- Weather7%
- Air traffic (NAS)7%
- Late aircraft44%
- 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 STL → CLT
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 87% on time.
- Mornings87% on time · p90 20 min · 2,856 flights
- Middays81% on time · p90 35 min · 837 flights
- Afternoons69% on time · p90 55 min · 1,464 flights
- Evenings65% on time · p90 70 min · 671 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 83% on time.
- Tuesdays83% on time · p90 35 min · 801 flights
- Wednesdays82% on time · p90 35 min · 823 flights
- Saturdays80% on time · p90 35 min · 735 flights
- Mondays79% on time · p90 40 min · 883 flights
- Thursdays78% on time · p90 45 min · 874 flights
- Fridays77% on time · p90 40 min · 875 flights
- Sundays76% on time · p90 40 min · 883 flights
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