Flight OddsAS307 SFO → BOS
Alaska Airlines · San Francisco, CA to Boston, MA · 49 flights observed, 2025-07-01 to 2025-08-19 · 2,704 mi
AS307 covers more than one route in the data window — the stats below are for SFO → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
57%
Median delay
+13 min
90th percentile
+51 min
Cancellation rate
0%
How often is AS307 on time?
Across 49 flights on SFO → BOS from 2025-07-01 to 2025-08-19, AS307 arrived within 15 minutes of schedule 57% of the time. The median arrival delay was +13 min, and the worst 10% of flights arrived +51 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 | 28 | 57% |
| 16-30 min | 15 | 31% |
| 31-60 min | 1 | 2% |
| 61-120 min | 2 | 4% |
| 2+ hrs | 3 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 53% | +22 min |
| 2025-08 | 19 | 63% | +28 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 57% |
| Tue | 8 | 50% |
| Wed | 7 | 71% |
| Thu | 7 | 29% |
| Fri | 6 | 83% |
| Sat | 7 | 86% |
| Sun | 7 | 29% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…