Flight OddsAS423 SEA → SAT
Alaska Airlines · Seattle, WA to San Antonio, TX · 71 flights observed, 2025-07-01 to 2025-12-15 · 1,774 mi
AS423 covers more than one route in the data window — the stats below are for SEA → SAT, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
81%
Median delay
-2 min
90th percentile
+24 min
Cancellation rate
3%
How often is AS423 on time?
Across 71 flights on SEA → SAT from 2025-07-01 to 2025-12-15, AS423 arrived within 15 minutes of schedule 81% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +24 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 56 | 81% |
| 16-30 min | 8 | 12% |
| 31-60 min | 5 | 7% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 76% | +3 min |
| 2025-08 | 18 | 83% | +3 min |
| 2025-10 | 3 | 67% | -11 min |
| 2025-11 | 11 | 82% | -1 min |
| 2025-12 | 8 | 100% | -8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 12 | 83% |
| Tue | 8 | 100% |
| Wed | 7 | 86% |
| Thu | 13 | 77% |
| Fri | 10 | 80% |
| Sat | 7 | 86% |
| Sun | 12 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…