Flight OddsWN4357 SMF → ONT
Southwest Airlines · Sacramento, CA to Ontario, CA · 24 flights observed, 2026-04-09 to 2026-06-01 · 390 mi
WN4357 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
88%
Median delay
-11 min
90th percentile
+28 min
Cancellation rate
0%
How often is WN4357 on time?
Across 24 flights on SMF → ONT from 2026-04-09 to 2026-06-01, WN4357 arrived within 15 minutes of schedule 88% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +28 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 | 21 | 88% |
| 16-30 min | 0 | 0% |
| 31-60 min | 1 | 4% |
| 61-120 min | 2 | 8% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 10 | 80% | +8 min |
| 2026-05 | 13 | 92% | -5 min |
| 2026-06 | 1 | 100% | +6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 88% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 8 | 100% |
| Fri | 8 | 75% |
| Sat | No data | — |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…