SDF → HOU Southwest Airlines

Southwest Airlines · Louisville, KY to Houston, TX · 283 flights, 2025-07-01 to 2026-06-30 · aggregated across 20 flight numbers

This route runs much more reliably at some times of day than others — 100% on-time departing 6–9am vs. 65% departing 3–6pm.
On-time arrival
81%
Median delay
-11 min
90th percentile
+36 min
Cancellation rate
1%

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

Across every Southwest Airlines flight number on SDF → HOU (283 flights, 2025-07-01 to 2026-06-30), 81% arrived within 15 minutes of schedule. Median arrival delay -11 min; the worst 10% ran +36 min or later. 1% were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time22781%
16-30 min166%
31-60 min249%
61-120 min83%
2+ hrs62%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073177%+1 min
2025-082255%+16 min
2025-092190%-6 min
2025-102986%+4 min
2025-111974%+10 min
2025-121765%+11 min
2026-018100%-12 min
2026-021889%+4 min
2026-032592%-5 min
2026-042993%-10 min
2026-053288%-16 min
2026-063067%+8 min

Performance by day of week

DayFlightsOn-time
Mon4576%
Tue3093%
Wed2688%
Thu4388%
Fri4676%
Sat4276%
Sun4976%

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