CHS → HOU Southwest Airlines

Southwest Airlines · Charleston, SC to Houston, TX · 201 flights, 2025-07-01 to 2026-06-29 · aggregated across 15 flight numbers

This route runs much more reliably at some times of day than others — 100% on-time departing 6–9am vs. 48% departing 6–9pm.
On-time arrival
79%
Median delay
-8 min
90th percentile
+31 min
Cancellation rate
0%

How on-time is Southwest Airlines from CHS to HOU?

Across every Southwest Airlines flight number on CHS → HOU (201 flights, 2025-07-01 to 2026-06-29), 79% arrived within 15 minutes of schedule. Median arrival delay -8 min; the worst 10% ran +31 min or later. 0% were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time15879%
16-30 min2010%
31-60 min147%
61-120 min42%
2+ hrs32%

Performance by month

MonthFlightsOn-timeAvg delay
2025-072879%-1 min
2025-081173%+6 min
2025-098100%-9 min
2025-103080%+5 min
2025-111867%+9 min
2025-121593%-8 min
2026-014100%-22 min
2026-0327100%-19 min
2026-041974%-2 min
2026-051872%+13 min
2026-062157%+11 min

Performance by day of week

DayFlightsOn-time
Mon3294%
Tue1669%
Wed1493%
Thu2983%
Fri3385%
Sat3284%
Sun4358%

Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…