Flight OddsWN4373 SMF → ONT
Southwest Airlines · Sacramento, CA to Ontario, CA · 18 flights observed, 2025-11-22 to 2026-01-04 · 390 mi
WN4373 covers more than one route in the data window — the stats below are for SMF → ONT, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
67%
Median delay
+3 min
90th percentile
+48 min
Cancellation rate
0%
How often is WN4373 on time?
Across 18 flights on SMF → ONT from 2025-11-22 to 2026-01-04, WN4373 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +48 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 | 12 | 67% |
| 16-30 min | 3 | 17% |
| 31-60 min | 1 | 6% |
| 61-120 min | 2 | 11% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 4 | 75% | +16 min |
| 2025-12 | 11 | 64% | +15 min |
| 2026-01 | 3 | 67% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 67% |
| Tue | 3 | 33% |
| Wed | 1 | 100% |
| Thu | No data | — |
| Fri | 3 | 67% |
| Sat | 5 | 60% |
| Sun | 3 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…