Historical on-time performance
Houston to Charleston
928 miData through May 2026Source: 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.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 1 cancellations with a reported cause (BTS reports causes from June 2003).
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 (2023-06 .. 2026-05).
Best time of day
Middays are the most reliable time of day to fly this route — 80% on time.
- Middays80% on time · p90 30 min · 208 flights
- Afternoons70% on time · p90 45 min · 135 flights · limited
- Overnights62% on time · p90 50 min · 143 flights · limited
- Evenings61% on time · p90 50 min · 102 flights · limited
Best day of week
Saturdays are the most reliable day to fly this route — 82% on time.
- Saturdays82% on time · p90 30 min · 110 flights · limited
- Sundays65% on time · p90 60 min · 122 flights · limited
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