Flight OddsAS657 SEA → SJC
Alaska Airlines · Seattle, WA to San Jose, CA · 218 flights observed, 2025-10-26 to 2026-06-09 · 696 mi
AS657 covers more than one route in the data window — the stats below are for SEA → SJC, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
77%
Median delay
-4 min
90th percentile
+30 min
Cancellation rate
0%
How often is AS657 on time?
Across 218 flights on SEA → SJC from 2025-10-26 to 2026-06-09, AS657 arrived within 15 minutes of schedule 77% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +30 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 | 167 | 77% |
| 16-30 min | 30 | 14% |
| 31-60 min | 17 | 8% |
| 61-120 min | 2 | 1% |
| 2+ hrs | 2 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 83% | +2 min |
| 2025-11 | 27 | 67% | +13 min |
| 2025-12 | 25 | 64% | +7 min |
| 2026-01 | 31 | 77% | +4 min |
| 2026-02 | 28 | 71% | +3 min |
| 2026-03 | 31 | 90% | -1 min |
| 2026-04 | 30 | 83% | -3 min |
| 2026-05 | 31 | 84% | -2 min |
| 2026-06 | 9 | 56% | +9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 33 | 67% |
| Tue | 30 | 73% |
| Wed | 29 | 76% |
| Thu | 32 | 81% |
| Fri | 32 | 63% |
| Sat | 29 | 86% |
| Sun | 33 | 91% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…