Flight OddsSTS → SEA Alaska Airlines
Alaska Airlines · Santa Rosa, CA to Seattle, WA · 693 flights, 2025-07-01 to 2026-06-30 · aggregated across 16 flight numbers
On-time arrival
76%
Median delay
-2 min
90th percentile
+41 min
Cancellation rate
2%
How on-time is Alaska Airlines from STS to SEA?
Across every Alaska Airlines flight number on STS → SEA (693 flights, 2025-07-01 to 2026-06-30), 76% arrived within 15 minutes of schedule. Median arrival delay -2 min; the worst 10% ran +41 min or later. 2% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 516 | 76% |
| 16-30 min | 68 | 10% |
| 31-60 min | 57 | 8% |
| 61-120 min | 26 | 4% |
| 2+ hrs | 12 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 60 | 58% | +21 min |
| 2025-08 | 61 | 62% | +20 min |
| 2025-09 | 60 | 73% | +7 min |
| 2025-10 | 62 | 94% | -5 min |
| 2025-11 | 58 | 86% | -7 min |
| 2025-12 | 51 | 51% | +21 min |
| 2026-01 | 49 | 86% | -1 min |
| 2026-02 | 51 | 84% | -3 min |
| 2026-03 | 60 | 82% | +7 min |
| 2026-04 | 57 | 79% | +5 min |
| 2026-05 | 59 | 75% | +6 min |
| 2026-06 | 51 | 82% | +6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 103 | 73% |
| Tue | 95 | 78% |
| Wed | 91 | 78% |
| Thu | 102 | 75% |
| Fri | 96 | 75% |
| Sat | 91 | 82% |
| Sun | 101 | 72% |
AS flight numbers on STS → SEA
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…