Flight OddsWN978 DEN → SMF
Southwest Airlines · Denver, CO to Sacramento, CA · 47 flights observed, 2026-01-06 to 2026-03-04 · 909 mi
WN978 covers more than one route in the data window — the stats below are for DEN → SMF, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
74%
Median delay
+2 min
90th percentile
+57 min
Cancellation rate
0%
How often is WN978 on time?
Across 47 flights on DEN → SMF from 2026-01-06 to 2026-03-04, WN978 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +57 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 | 35 | 74% |
| 16-30 min | 4 | 9% |
| 31-60 min | 3 | 6% |
| 61-120 min | 4 | 9% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 26 | 77% | +6 min |
| 2026-02 | 18 | 67% | +22 min |
| 2026-03 | 3 | 100% | -10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 100% |
| Tue | 9 | 78% |
| Wed | 9 | 67% |
| Thu | 6 | 83% |
| Fri | 5 | 80% |
| Sat | 5 | 60% |
| Sun | 6 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…