Flight OddsAS1311 SJC → SEA
Alaska Airlines · San Jose, CA to Seattle, WA · 296 flights observed, 2025-07-01 to 2026-06-30 · 696 mi
AS1311 covers more than one route in the data window — the stats below are for SJC → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
92%
Median delay
-13 min
90th percentile
+13 min
Cancellation rate
3%
How often is AS1311 on time?
Across 296 flights on SJC → SEA from 2025-07-01 to 2026-06-30, AS1311 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +13 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 264 | 92% |
| 16-30 min | 15 | 5% |
| 31-60 min | 7 | 2% |
| 61-120 min | 2 | 1% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 25 | 88% | 0 min |
| 2025-08 | 25 | 88% | -9 min |
| 2025-09 | 25 | 88% | -11 min |
| 2025-10 | 22 | 100% | -20 min |
| 2025-11 | 26 | 92% | -13 min |
| 2025-12 | 29 | 100% | -10 min |
| 2026-01 | 30 | 87% | -11 min |
| 2026-02 | 24 | 100% | -17 min |
| 2026-03 | 25 | 88% | -5 min |
| 2026-04 | 28 | 100% | -13 min |
| 2026-05 | 8 | 100% | -11 min |
| 2026-06 | 21 | 71% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 48 | 96% |
| Tue | 44 | 91% |
| Wed | 43 | 98% |
| Thu | 45 | 89% |
| Fri | 43 | 88% |
| Sat | 31 | 94% |
| Sun | 34 | 85% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…