Flight OddsAS1321 STS → SEA
Alaska Airlines · Santa Rosa, CA to Seattle, WA · 99 flights observed, 2025-07-01 to 2026-06-09 · 618 mi
AS1321 covers more than one route in the data window — the stats below are for STS → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
62%
Median delay
+2 min
90th percentile
+65 min
Cancellation rate
2%
How often is AS1321 on time?
Across 99 flights on STS → SEA from 2025-07-01 to 2026-06-09, AS1321 arrived within 15 minutes of schedule 62% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +65 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 60 | 62% |
| 16-30 min | 12 | 12% |
| 31-60 min | 15 | 15% |
| 61-120 min | 6 | 6% |
| 2+ hrs | 4 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 28% | +31 min |
| 2025-08 | 18 | 28% | +48 min |
| 2025-10 | 22 | 95% | -2 min |
| 2026-05 | 19 | 100% | -10 min |
| 2026-06 | 9 | 78% | +11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 14 | 57% |
| Tue | 15 | 73% |
| Wed | 14 | 64% |
| Thu | 14 | 57% |
| Fri | 12 | 58% |
| Sat | 15 | 60% |
| Sun | 13 | 62% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…