Historical on-time performance
Houston to Charleston
928 miData through Dec 2025Source: US DOT · BTS
Flights on HOU–CHS arrive on time 65% of the time over the last 12 months.
On-time rate65%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 60 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time65%Medianon timep9035 minCancel0.0%Flights60
Why flights run late
Delay causes
- Airline10%
- Weather0%
- Air traffic (NAS)8%
- Late aircraft82%
- 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 HOU → 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 63% to 80% on time.
- Middays80% on time · p90 30 min · 184 flights · limited
- Afternoons71% on time · p90 45 min · 141 flights · limited
- Evenings65% on time · p90 50 min · 93 flights · limited
- Overnights63% on time · p90 45 min · 115 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 62% to 83% on time.
- Saturdays83% on time · p90 30 min · 104 flights · limited
- Mondays77% on time · p90 35 min · 69 flights · limited
- Thursdays75% on time · p90 35 min · 72 flights · limited
- Sundays68% on time · p90 60 min · 120 flights · limited
- Fridays65% on time · p90 40 min · 77 flights · limited
- Tuesdays62% on time · p90 50 min · 52 flights · limited
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