Flight OddsWN4001 ONT → SMF
Southwest Airlines · Ontario, CA to Sacramento, CA · 40 flights observed, 2025-11-02 to 2026-01-05 · 390 mi
WN4001 covers more than one route in the data window — the stats below are for ONT → SMF, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
82%
Median delay
-7 min
90th percentile
+31 min
Cancellation rate
3%
How often is WN4001 on time?
Across 40 flights on ONT → SMF from 2025-11-02 to 2026-01-05, WN4001 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +31 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 32 | 82% |
| 16-30 min | 3 | 8% |
| 31-60 min | 1 | 3% |
| 61-120 min | 2 | 5% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 18 | 89% | -5 min |
| 2025-12 | 17 | 88% | +15 min |
| 2026-01 | 4 | 25% | +18 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 83% |
| Tue | 3 | 100% |
| Wed | 1 | 100% |
| Thu | 3 | 100% |
| Fri | 8 | 75% |
| Sat | 8 | 63% |
| Sun | 10 | 90% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…