Flight OddsAS1436 SEA → BOS
Alaska Airlines · Seattle, WA to Boston, MA · 15 flights observed, 2025-12-01 to 2026-05-12 · 2,496 mi
AS1436 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
87%
Median delay
-21 min
90th percentile
+13 min
Cancellation rate
0%
How often is AS1436 on time?
Across 15 flights on SEA → BOS from 2025-12-01 to 2026-05-12, AS1436 arrived within 15 minutes of schedule 87% of the time. The median arrival delay was -21 min, and the worst 10% of flights arrived +13 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 | 13 | 87% |
| 16-30 min | 1 | 7% |
| 31-60 min | 1 | 7% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 1 | 100% | -22 min |
| 2026-04 | 2 | 0% | +39 min |
| 2026-05 | 12 | 100% | -25 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 100% |
| Tue | 2 | 100% |
| Wed | 2 | 50% |
| Thu | 2 | 50% |
| Fri | 2 | 100% |
| Sat | 2 | 100% |
| Sun | 2 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…