Flight OddsAS138 MSO → SEA
Alaska Airlines · Missoula, MT to Seattle, WA · 70 flights observed, 2026-01-07 to 2026-03-17 · 389 mi
AS138 covers more than one route in the data window — the stats below are for MSO → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
86%
Median delay
0 min
90th percentile
+22 min
Cancellation rate
0%
How often is AS138 on time?
Across 70 flights on MSO → SEA from 2026-01-07 to 2026-03-17, AS138 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +22 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 | 60 | 86% |
| 16-30 min | 4 | 6% |
| 31-60 min | 1 | 1% |
| 61-120 min | 1 | 1% |
| 2+ hrs | 4 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 25 | 88% | +26 min |
| 2026-02 | 28 | 89% | -5 min |
| 2026-03 | 17 | 76% | +39 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 100% |
| Tue | 10 | 80% |
| Wed | 10 | 90% |
| Thu | 10 | 90% |
| Fri | 10 | 80% |
| Sat | 10 | 80% |
| Sun | 10 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…