Flight OddsAS291 SEA → STL
Alaska Airlines · Seattle, WA to St. Louis, MO · 94 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 SEA → STL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
63%
Median delay
+8 min
90th percentile
+39 min
Cancellation rate
0%
How often is AS291 on time?
Across 94 flights on SEA → STL from 2025-07-01 to 2025-10-03, AS291 arrived within 15 minutes of schedule 63% of the time. The median arrival delay was +8 min, and the worst 10% of flights arrived +39 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 | 59 | 63% |
| 16-30 min | 20 | 21% |
| 31-60 min | 11 | 12% |
| 61-120 min | 4 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 61% | +16 min |
| 2025-08 | 30 | 57% | +17 min |
| 2025-09 | 30 | 67% | +6 min |
| 2025-10 | 3 | 100% | -10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 13 | 54% |
| Tue | 14 | 50% |
| Wed | 13 | 69% |
| Thu | 14 | 50% |
| Fri | 14 | 93% |
| Sat | 13 | 54% |
| Sun | 13 | 69% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…