Flight OddsAS623 SEA → SAN
Alaska Airlines · Seattle, WA to San Diego, CA · 205 flights observed, 2025-10-26 to 2026-06-09 · 1,050 mi
AS623 covers more than one route in the data window — the stats below are for SEA → SAN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
73%
Median delay
+2 min
90th percentile
+52 min
Cancellation rate
1%
How often is AS623 on time?
Across 205 flights on SEA → SAN from 2025-10-26 to 2026-06-09, AS623 arrived within 15 minutes of schedule 73% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +52 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 | 146 | 73% |
| 16-30 min | 25 | 12% |
| 31-60 min | 14 | 7% |
| 61-120 min | 11 | 5% |
| 2+ hrs | 5 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 4 | 100% | -6 min |
| 2025-11 | 21 | 52% | +20 min |
| 2025-12 | 29 | 59% | +22 min |
| 2026-01 | 31 | 68% | +14 min |
| 2026-02 | 28 | 68% | +9 min |
| 2026-03 | 27 | 78% | +14 min |
| 2026-04 | 23 | 87% | -2 min |
| 2026-05 | 29 | 86% | -3 min |
| 2026-06 | 9 | 89% | -2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 33 | 64% |
| Tue | 27 | 85% |
| Wed | 25 | 80% |
| Thu | 29 | 72% |
| Fri | 28 | 61% |
| Sat | 26 | 85% |
| Sun | 33 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…