Flight OddsAS291 STL → SEA
Alaska Airlines · St. Louis, MO to Seattle, WA · 75 flights observed, 2025-07-01 to 2025-10-03 · 1,709 mi
AS291 covers more than one route in the data window — the stats below are for STL → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
63%
Median delay
+6 min
90th percentile
+53 min
Cancellation rate
0%
How often is AS291 on time?
Across 75 flights on STL → SEA from 2025-07-01 to 2025-10-03, AS291 arrived within 15 minutes of schedule 63% of the time. The median arrival delay was +6 min, and the worst 10% of flights arrived +53 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 | 47 | 63% |
| 16-30 min | 12 | 16% |
| 31-60 min | 9 | 12% |
| 61-120 min | 5 | 7% |
| 2+ hrs | 2 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 50% | +24 min |
| 2025-08 | 26 | 58% | +23 min |
| 2025-09 | 17 | 88% | -10 min |
| 2025-10 | 2 | 100% | -19 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 13 | 54% |
| Tue | 8 | 50% |
| Wed | 7 | 71% |
| Thu | 14 | 57% |
| Fri | 13 | 77% |
| Sat | 7 | 43% |
| Sun | 13 | 77% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…