Flight OddsAS536 SEA → BOS
Alaska Airlines · Seattle, WA to Boston, MA · 244 flights observed, 2025-07-01 to 2026-06-30 · 2,496 mi
AS536 covers more than one route in the data window — the stats below are for SEA → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
76%
Median delay
-3 min
90th percentile
+32 min
Cancellation rate
1%
How often is AS536 on time?
Across 244 flights on SEA → BOS from 2025-07-01 to 2026-06-30, AS536 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +32 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 | 184 | 76% |
| 16-30 min | 32 | 13% |
| 31-60 min | 20 | 8% |
| 61-120 min | 3 | 1% |
| 2+ hrs | 3 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 68% | +17 min |
| 2025-08 | 30 | 70% | +4 min |
| 2025-09 | 30 | 83% | +2 min |
| 2025-10 | 28 | 86% | -6 min |
| 2025-11 | 14 | 93% | -11 min |
| 2025-12 | 11 | 82% | +4 min |
| 2026-02 | 15 | 60% | +7 min |
| 2026-03 | 17 | 71% | +3 min |
| 2026-04 | 9 | 56% | +21 min |
| 2026-05 | 30 | 73% | +2 min |
| 2026-06 | 27 | 85% | -1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 36 | 83% |
| Tue | 30 | 90% |
| Wed | 38 | 63% |
| Thu | 38 | 66% |
| Fri | 36 | 78% |
| Sat | 28 | 86% |
| Sun | 36 | 72% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…