Flight OddsAS2109 SEA → BOI
Alaska Airlines · Seattle, WA to Boise, ID · 107 flights observed, 2025-11-21 to 2026-06-30 · 399 mi
AS2109 covers more than one route in the data window — the stats below are for SEA → BOI, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
83%
Median delay
-7 min
90th percentile
+29 min
Cancellation rate
1%
How often is AS2109 on time?
Across 107 flights on SEA → BOI from 2025-11-21 to 2026-06-30, AS2109 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +29 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 | 88 | 83% |
| 16-30 min | 8 | 8% |
| 31-60 min | 9 | 8% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 10 | 60% | +8 min |
| 2025-12 | 15 | 73% | +6 min |
| 2026-01 | 6 | 67% | +13 min |
| 2026-03 | 14 | 100% | -13 min |
| 2026-04 | 29 | 90% | -8 min |
| 2026-05 | 11 | 91% | +18 min |
| 2026-06 | 21 | 81% | +6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 16 | 81% |
| Tue | 14 | 79% |
| Wed | 13 | 85% |
| Thu | 15 | 93% |
| Fri | 16 | 81% |
| Sat | 16 | 75% |
| Sun | 16 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…