Flight OddsWN4204 SEA → SMF
Southwest Airlines · Seattle, WA to Sacramento, CA · 51 flights observed, 2026-04-07 to 2026-06-03 · 605 mi
WN4204 covers more than one route in the data window — the stats below are for SEA → SMF, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
57%
Median delay
+12 min
90th percentile
+35 min
Cancellation rate
0%
How often is WN4204 on time?
Across 51 flights on SEA → SMF from 2026-04-07 to 2026-06-03, WN4204 arrived within 15 minutes of schedule 57% of the time. The median arrival delay was +12 min, and the worst 10% of flights arrived +35 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 | 29 | 57% |
| 16-30 min | 13 | 25% |
| 31-60 min | 8 | 16% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 21 | 57% | +15 min |
| 2026-05 | 27 | 52% | +13 min |
| 2026-06 | 3 | 100% | -2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 63% |
| Tue | 9 | 67% |
| Wed | 9 | 44% |
| Thu | 8 | 63% |
| Fri | 8 | 50% |
| Sat | 8 | 50% |
| Sun | 1 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…