Flight OddsWN3994 SMF → ONT
Southwest Airlines · Sacramento, CA to Ontario, CA · 45 flights observed, 2025-11-02 to 2026-01-05 · 390 mi
WN3994 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
84%
Median delay
-6 min
90th percentile
+20 min
Cancellation rate
0%
How often is WN3994 on time?
Across 45 flights on SMF → ONT from 2025-11-02 to 2026-01-05, WN3994 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +20 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 | 38 | 84% |
| 16-30 min | 4 | 9% |
| 31-60 min | 1 | 2% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 23 | 78% | +10 min |
| 2025-12 | 20 | 90% | -4 min |
| 2026-01 | 2 | 100% | -11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 86% |
| Tue | 6 | 83% |
| Wed | 8 | 88% |
| Thu | 8 | 88% |
| Fri | 6 | 67% |
| Sat | 4 | 75% |
| Sun | 6 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…