Flight OddsAS618 STL → SEA
Alaska Airlines · St. Louis, MO to Seattle, WA · 80 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 STL → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
86%
Median delay
-6 min
90th percentile
+32 min
Cancellation rate
1%
How often is AS618 on time?
Across 80 flights on STL → SEA from 2026-01-07 to 2026-06-30, AS618 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +32 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 | 68 | 86% |
| 16-30 min | 2 | 3% |
| 31-60 min | 4 | 5% |
| 61-120 min | 3 | 4% |
| 2+ hrs | 2 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 20 | 100% | -8 min |
| 2026-02 | 10 | 100% | -14 min |
| 2026-05 | 19 | 74% | +22 min |
| 2026-06 | 30 | 80% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 12 | 92% |
| Tue | 12 | 100% |
| Wed | 13 | 92% |
| Thu | 12 | 67% |
| Fri | 12 | 75% |
| Sat | 7 | 100% |
| Sun | 11 | 82% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…