Flight OddsAS321 SEA → SMF
Alaska Airlines · Seattle, WA to Sacramento, CA · 60 flights observed, 2026-01-07 to 2026-03-16 · 605 mi
AS321 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
68%
Median delay
+1 min
90th percentile
+42 min
Cancellation rate
0%
How often is AS321 on time?
Across 60 flights on SEA → SMF from 2026-01-07 to 2026-03-16, AS321 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +42 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 | 40 | 68% |
| 16-30 min | 9 | 15% |
| 31-60 min | 7 | 12% |
| 61-120 min | 3 | 5% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 24 | 75% | +5 min |
| 2026-02 | 24 | 63% | +14 min |
| 2026-03 | 11 | 64% | +13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 70% |
| Tue | 5 | 60% |
| Wed | 6 | 50% |
| Thu | 10 | 90% |
| Fri | 10 | 50% |
| Sat | 8 | 63% |
| Sun | 10 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…