Historical on-time performance
St. Louis to Charleston
706 miData through Dec 2025Source: US DOT · BTS
Flights on STL–CHS arrive on time 82% of the time over the last 12 months.
On-time rate82%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 92 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time82%Medianon timep9025 minCancel0.0%Flights92
Why flights run late
Delay causes
- Airline46%
- Weather0%
- Air traffic (NAS)35%
- Late aircraft19%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly STL → CHS
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 73% to 90% on time.
- Mornings90% on time · p90 5 min · 51 flights · limited
- Middays85% on time · p90 20 min · 122 flights · limited
- Afternoons73% on time · p90 35 min · 64 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 80% to 82% on time.
- Sundays82% on time · p90 25 min · 74 flights · limited
- Saturdays80% on time · p90 25 min · 54 flights · limited
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