WN51 DAL → HOU

Southwest Airlines · Dallas, TX to Houston, TX · 235 flights observed, 2025-07-03 to 2026-06-27 · 239 mi

WN51 covers more than one route in the data window — the stats below are for DAL → HOU, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
68%
Median delay
+3 min
90th percentile
+55 min
Cancellation rate
0%

How often is WN51 on time?

Across 235 flights on DAL → HOU from 2025-07-03 to 2026-06-27, WN51 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +55 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time15868%
16-30 min3013%
31-60 min2410%
61-120 min136%
2+ hrs94%

Performance by month

MonthFlightsOn-timeAvg delay
2025-071275%+11 min
2025-082176%+26 min
2025-092268%+22 min
2025-102291%-5 min
2025-112357%+33 min
2025-122070%+8 min
2026-011989%-9 min
2026-021968%+8 min
2026-032635%+26 min
2026-042268%+13 min
2026-052157%+20 min
2026-06771%+24 min

Performance by day of week

DayFlightsOn-time
Mon4068%
Tue4075%
Wed4367%
Thu4459%
Fri4168%
Sat1663%
Sun1080%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…