Flight OddsAS618 SEA → STL
Alaska Airlines · Seattle, WA to St. Louis, MO · 114 flights observed, 2026-01-07 to 2026-06-30 · 1,709 mi
AS618 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
92%
Median delay
-17 min
90th percentile
+10 min
Cancellation rate
1%
How often is AS618 on time?
Across 114 flights on SEA → STL from 2026-01-07 to 2026-06-30, AS618 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -17 min, and the worst 10% of flights arrived +10 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 103 | 92% |
| 16-30 min | 6 | 5% |
| 31-60 min | 1 | 1% |
| 61-120 min | 1 | 1% |
| 2+ hrs | 1 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 20 | 100% | -19 min |
| 2026-02 | 27 | 100% | -25 min |
| 2026-03 | 17 | 100% | -16 min |
| 2026-05 | 19 | 63% | +15 min |
| 2026-06 | 29 | 93% | -11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 17 | 100% |
| Tue | 17 | 100% |
| Wed | 17 | 88% |
| Thu | 16 | 88% |
| Fri | 17 | 88% |
| Sat | 12 | 83% |
| Sun | 16 | 94% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…