Flight OddsAS390 SAN → BOS
Alaska Airlines · San Diego, CA to Boston, MA · 358 flights observed, 2025-07-01 to 2026-06-30 · 2,588 mi
On-time arrival
75%
Median delay
-2 min
90th percentile
+58 min
Cancellation rate
1%
How often is AS390 on time?
Across 358 flights on SAN → BOS from 2025-07-01 to 2026-06-30, AS390 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +58 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 | 259 | 75% |
| 16-30 min | 22 | 6% |
| 31-60 min | 32 | 9% |
| 61-120 min | 18 | 5% |
| 2+ hrs | 15 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 63% | +24 min |
| 2025-08 | 31 | 61% | +19 min |
| 2025-09 | 29 | 62% | +37 min |
| 2025-10 | 29 | 55% | +36 min |
| 2025-11 | 29 | 72% | +13 min |
| 2025-12 | 29 | 72% | +22 min |
| 2026-01 | 25 | 88% | -1 min |
| 2026-02 | 26 | 73% | -4 min |
| 2026-03 | 28 | 75% | +4 min |
| 2026-04 | 30 | 87% | -7 min |
| 2026-05 | 30 | 97% | -6 min |
| 2026-06 | 30 | 93% | -11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 48 | 81% |
| Tue | 52 | 71% |
| Wed | 50 | 70% |
| Thu | 51 | 73% |
| Fri | 50 | 70% |
| Sat | 45 | 96% |
| Sun | 50 | 66% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…