Historical on-time performance
Charleston to Houston
928 miData through Dec 2025Source: 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.
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 (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 94% on time.
- Mornings94% on time · p90 on time · 166 flights · limited
- Afternoons75% on time · p90 40 min · 106 flights · limited
- Middays74% on time · p90 35 min · 93 flights · limited
- Evenings67% on time · p90 45 min · 174 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 83% on time.
- Thursdays83% on time · p90 15 min · 72 flights · limited
- Mondays81% on time · p90 20 min · 69 flights · limited
- Fridays79% on time · p90 30 min · 77 flights · limited
- Saturdays76% on time · p90 50 min · 109 flights · limited
- Tuesdays75% on time · p90 35 min · 52 flights · limited
- Sundays68% on time · p90 50 min · 120 flights · limited
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