Historical on-time performance
Charleston to Houston
928 miData through May 2026Source: US DOT · BTS
Flights on CHS–HOU arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay45 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-time77%Medianon timep9045 minCancel0.0%Flights60
Why flights run late
Delay causes
- Airline8%
- Weather0%
- Air traffic (NAS)24%
- Late aircraft68%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline13%
- Weather75%
- Air traffic (NAS)13%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 8 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 CHS → HOU
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 95% on time.
- Mornings95% on time · p90 on time · 194 flights · limited
- Afternoons75% on time · p90 30 min · 135 flights · limited
- Evenings66% on time · p90 45 min · 172 flights · limited
Best day of week
Saturdays are the most reliable day to fly this route — 77% on time.
- Saturdays77% on time · p90 45 min · 115 flights · limited
- Sundays66% on time · p90 45 min · 122 flights · limited
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