Flight OddsSEA → STL Alaska Airlines
Alaska Airlines · Seattle, WA to St. Louis, MO · 780 flights, 2025-07-01 to 2026-06-30 · aggregated across 10 flight numbers
On-time arrival
83%
Median delay
-8 min
90th percentile
+27 min
Cancellation rate
0%
How on-time is Alaska Airlines from SEA to STL?
Across every Alaska Airlines flight number on SEA → STL (780 flights, 2025-07-01 to 2026-06-30), 83% arrived within 15 minutes of schedule. Median arrival delay -8 min; the worst 10% ran +27 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 644 | 83% |
| 16-30 min | 68 | 9% |
| 31-60 min | 44 | 6% |
| 61-120 min | 14 | 2% |
| 2+ hrs | 6 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 92 | 67% | +12 min |
| 2025-08 | 88 | 67% | +12 min |
| 2025-09 | 77 | 79% | +2 min |
| 2025-10 | 61 | 85% | 0 min |
| 2025-11 | 50 | 84% | -7 min |
| 2025-12 | 54 | 81% | 0 min |
| 2026-01 | 36 | 92% | -8 min |
| 2026-02 | 38 | 97% | -22 min |
| 2026-03 | 51 | 94% | -18 min |
| 2026-04 | 59 | 100% | -17 min |
| 2026-05 | 81 | 83% | -3 min |
| 2026-06 | 89 | 90% | -7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 118 | 79% |
| Tue | 104 | 86% |
| Wed | 101 | 86% |
| Thu | 118 | 81% |
| Fri | 121 | 83% |
| Sat | 96 | 79% |
| Sun | 118 | 87% |
AS flight numbers on SEA → STL
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…