Flight OddsAS429 SEA → BOI
Alaska Airlines · Seattle, WA to Boise, ID · 34 flights observed, 2026-03-19 to 2026-04-21 · 399 mi
AS429 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
88%
Median delay
-12 min
90th percentile
+17 min
Cancellation rate
0%
How often is AS429 on time?
Across 34 flights on SEA → BOI from 2026-03-19 to 2026-04-21, AS429 arrived within 15 minutes of schedule 88% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +17 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 | 30 | 88% |
| 16-30 min | 1 | 3% |
| 31-60 min | 1 | 3% |
| 61-120 min | 2 | 6% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 13 | 77% | +6 min |
| 2026-04 | 21 | 95% | -11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 5 | 100% |
| Wed | 4 | 100% |
| Thu | 5 | 80% |
| Fri | 5 | 80% |
| Sat | 5 | 80% |
| Sun | 5 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…