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).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 158 | 68% |
| 16-30 min | 30 | 13% |
| 31-60 min | 24 | 10% |
| 61-120 min | 13 | 6% |
| 2+ hrs | 9 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 12 | 75% | +11 min |
| 2025-08 | 21 | 76% | +26 min |
| 2025-09 | 22 | 68% | +22 min |
| 2025-10 | 22 | 91% | -5 min |
| 2025-11 | 23 | 57% | +33 min |
| 2025-12 | 20 | 70% | +8 min |
| 2026-01 | 19 | 89% | -9 min |
| 2026-02 | 19 | 68% | +8 min |
| 2026-03 | 26 | 35% | +26 min |
| 2026-04 | 22 | 68% | +13 min |
| 2026-05 | 21 | 57% | +20 min |
| 2026-06 | 7 | 71% | +24 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 40 | 68% |
| Tue | 40 | 75% |
| Wed | 43 | 67% |
| Thu | 44 | 59% |
| Fri | 41 | 68% |
| Sat | 16 | 63% |
| Sun | 10 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…