Flight OddsAS1166 SEA → SFO
Alaska Airlines · Seattle, WA to San Francisco, CA · 109 flights observed, 2025-07-01 to 2025-10-25 · 679 mi
AS1166 covers more than one route in the data window — the stats below are for SEA → SFO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
70%
Median delay
-4 min
90th percentile
+70 min
Cancellation rate
4%
How often is AS1166 on time?
Across 109 flights on SEA → SFO from 2025-07-01 to 2025-10-25, AS1166 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +70 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 73 | 70% |
| 16-30 min | 12 | 11% |
| 31-60 min | 6 | 6% |
| 61-120 min | 10 | 10% |
| 2+ hrs | 4 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 28 | 57% | +27 min |
| 2025-08 | 27 | 81% | +6 min |
| 2025-09 | 25 | 68% | +6 min |
| 2025-10 | 25 | 72% | +7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 16 | 63% |
| Tue | 17 | 71% |
| Wed | 16 | 81% |
| Thu | 17 | 59% |
| Fri | 14 | 79% |
| Sat | 15 | 80% |
| Sun | 10 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…