Flight OddsAS318 SEA → BOI
Alaska Airlines · Seattle, WA to Boise, ID · 191 flights observed, 2025-10-26 to 2026-05-12 · 399 mi
AS318 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
78%
Median delay
-5 min
90th percentile
+36 min
Cancellation rate
1%
How often is AS318 on time?
Across 191 flights on SEA → BOI from 2025-10-26 to 2026-05-12, AS318 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +36 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 | 149 | 78% |
| 16-30 min | 19 | 10% |
| 31-60 min | 14 | 7% |
| 61-120 min | 8 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 100% | -6 min |
| 2025-11 | 25 | 64% | +17 min |
| 2025-12 | 28 | 68% | +10 min |
| 2026-01 | 30 | 80% | +1 min |
| 2026-02 | 28 | 89% | -7 min |
| 2026-03 | 31 | 71% | +6 min |
| 2026-04 | 30 | 83% | -4 min |
| 2026-05 | 12 | 100% | -11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 28 | 75% |
| Tue | 28 | 93% |
| Wed | 26 | 85% |
| Thu | 26 | 81% |
| Fri | 28 | 79% |
| Sat | 25 | 76% |
| Sun | 29 | 62% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…