Flight OddsAS1140 SEA → SFO
Alaska Airlines · Seattle, WA to San Francisco, CA · 106 flights observed, 2025-07-01 to 2025-10-24 · 679 mi
AS1140 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
59%
Median delay
+11 min
90th percentile
+69 min
Cancellation rate
1%
How often is AS1140 on time?
Across 106 flights on SEA → SFO from 2025-07-01 to 2025-10-24, AS1140 arrived within 15 minutes of schedule 59% of the time. The median arrival delay was +11 min, and the worst 10% of flights arrived +69 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 62 | 59% |
| 16-30 min | 16 | 15% |
| 31-60 min | 13 | 12% |
| 61-120 min | 8 | 8% |
| 2+ hrs | 6 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 74% | +13 min |
| 2025-08 | 29 | 66% | +27 min |
| 2025-09 | 28 | 36% | +38 min |
| 2025-10 | 17 | 59% | +26 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 16 | 69% |
| Tue | 17 | 59% |
| Wed | 17 | 65% |
| Thu | 15 | 47% |
| Fri | 13 | 54% |
| Sat | 12 | 75% |
| Sun | 15 | 47% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…