Flight OddsWN4331 SMF → DEN
Southwest Airlines · Sacramento, CA to Denver, CO · 56 flights observed, 2026-04-07 to 2026-06-03 · 909 mi
WN4331 covers more than one route in the data window — the stats below are for SMF → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
73%
Median delay
+1 min
90th percentile
+51 min
Cancellation rate
0%
How often is WN4331 on time?
Across 56 flights on SMF → DEN from 2026-04-07 to 2026-06-03, WN4331 arrived within 15 minutes of schedule 73% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +51 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 | 41 | 73% |
| 16-30 min | 3 | 5% |
| 31-60 min | 8 | 14% |
| 61-120 min | 4 | 7% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 24 | 75% | +9 min |
| 2026-05 | 29 | 72% | +10 min |
| 2026-06 | 3 | 67% | +16 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 75% |
| Tue | 9 | 78% |
| Wed | 8 | 88% |
| Thu | 8 | 50% |
| Fri | 8 | 38% |
| Sat | 8 | 100% |
| Sun | 7 | 86% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…