Flight OddsAS1340 SFO → SEA
Alaska Airlines · San Francisco, CA to Seattle, WA · 152 flights observed, 2025-11-21 to 2026-06-30 · 679 mi
AS1340 covers more than one route in the data window — the stats below are for SFO → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
68%
Median delay
-2 min
90th percentile
+46 min
Cancellation rate
0%
How often is AS1340 on time?
Across 152 flights on SFO → SEA from 2025-11-21 to 2026-06-30, AS1340 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +46 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 | 104 | 68% |
| 16-30 min | 27 | 18% |
| 31-60 min | 8 | 5% |
| 61-120 min | 10 | 7% |
| 2+ hrs | 3 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 10 | 90% | -10 min |
| 2025-12 | 13 | 31% | +38 min |
| 2026-01 | 5 | 60% | +18 min |
| 2026-02 | 14 | 79% | +2 min |
| 2026-03 | 27 | 81% | -1 min |
| 2026-04 | 26 | 81% | +3 min |
| 2026-05 | 28 | 71% | +2 min |
| 2026-06 | 29 | 48% | +25 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 25 | 68% |
| Tue | 24 | 71% |
| Wed | 21 | 76% |
| Thu | 24 | 67% |
| Fri | 25 | 60% |
| Sat | 8 | 75% |
| Sun | 25 | 68% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…