Flight OddsAS357 BOS → SFO
Alaska Airlines · Boston, MA to San Francisco, CA · 61 flights observed, 2025-10-26 to 2026-01-06 · 2,704 mi
AS357 covers more than one route in the data window — the stats below are for BOS → SFO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
53%
Median delay
+14 min
90th percentile
+130 min
Cancellation rate
0%
How often is AS357 on time?
Across 61 flights on BOS → SFO from 2025-10-26 to 2026-01-06, AS357 arrived within 15 minutes of schedule 53% of the time. The median arrival delay was +14 min, and the worst 10% of flights arrived +130 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 | 30 | 53% |
| 16-30 min | 8 | 14% |
| 31-60 min | 5 | 9% |
| 61-120 min | 7 | 12% |
| 2+ hrs | 7 | 12% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 5 | 80% | +28 min |
| 2025-11 | 19 | 47% | +25 min |
| 2025-12 | 28 | 57% | +38 min |
| 2026-01 | 5 | 20% | +73 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 75% |
| Tue | 10 | 80% |
| Wed | 9 | 22% |
| Thu | 8 | 25% |
| Fri | 6 | 67% |
| Sat | 8 | 50% |
| Sun | 8 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…