AS91 SEA → SIT
Alaska Airlines · Seattle, WA to Sitka, AK · 99 flights observed, 2025-07-01 to 2026-06-30 · 861 mi
AS91 covers more than one route in the data window — the stats below are for SEA → SIT, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
67%
Median delay
-2 min
90th percentile
+59 min
Cancellation rate
1%
How often is AS91 on time?
Across 99 flights on SEA → SIT from 2025-07-01 to 2026-06-30, AS91 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +59 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 | 65 | 67% |
| 16-30 min | 9 | 9% |
| 31-60 min | 13 | 13% |
| 61-120 min | 8 | 8% |
| 2+ hrs | 2 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 62% | +23 min |
| 2025-08 | 18 | 67% | +16 min |
| 2026-05 | 20 | 85% | +1 min |
| 2026-06 | 30 | 60% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 14 | 50% |
| Tue | 15 | 87% |
| Wed | 14 | 71% |
| Thu | 13 | 62% |
| Fri | 14 | 71% |
| Sat | 14 | 79% |
| Sun | 13 | 46% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…