Flight OddsAS550 SEA → BOI
Alaska Airlines · Seattle, WA to Boise, ID · 48 flights observed, 2026-04-22 to 2026-06-09 · 399 mi
AS550 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
77%
Median delay
-8 min
90th percentile
+25 min
Cancellation rate
0%
How often is AS550 on time?
Across 48 flights on SEA → BOI from 2026-04-22 to 2026-06-09, AS550 arrived within 15 minutes of schedule 77% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +25 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 | 37 | 77% |
| 16-30 min | 7 | 15% |
| 31-60 min | 3 | 6% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 9 | 89% | -9 min |
| 2026-05 | 30 | 77% | +2 min |
| 2026-06 | 9 | 67% | +1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 71% |
| Tue | 6 | 83% |
| Wed | 7 | 86% |
| Thu | 7 | 57% |
| Fri | 7 | 86% |
| Sat | 7 | 71% |
| Sun | 7 | 86% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…