Flight OddsAS504 LAX → SEA
Alaska Airlines · Los Angeles, CA to Seattle, WA · 124 flights observed, 2025-07-01 to 2026-02-11 · 954 mi
AS504 covers more than one route in the data window — the stats below are for LAX → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
87%
Median delay
-8 min
90th percentile
+18 min
Cancellation rate
4%
How often is AS504 on time?
Across 124 flights on LAX → SEA from 2025-07-01 to 2026-02-11, AS504 arrived within 15 minutes of schedule 87% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +18 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 104 | 87% |
| 16-30 min | 10 | 8% |
| 31-60 min | 2 | 2% |
| 61-120 min | 2 | 2% |
| 2+ hrs | 1 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 27 | 89% | +0 min |
| 2025-08 | 19 | 89% | +12 min |
| 2025-10 | 6 | 100% | -10 min |
| 2025-11 | 1 | 100% | -26 min |
| 2025-12 | 26 | 85% | -2 min |
| 2026-01 | 29 | 79% | -6 min |
| 2026-02 | 11 | 100% | -25 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 17 | 88% |
| Tue | 19 | 84% |
| Wed | 17 | 100% |
| Thu | 17 | 76% |
| Fri | 18 | 78% |
| Sat | 14 | 86% |
| Sun | 17 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…