Flight OddsAS503 AUS → SEA
Alaska Airlines · Austin, TX to Seattle, WA · 335 flights observed, 2025-07-01 to 2026-06-30 · 1,770 mi
On-time arrival
86%
Median delay
-8 min
90th percentile
+21 min
Cancellation rate
1%
How often is AS503 on time?
Across 335 flights on AUS → SEA from 2025-07-01 to 2026-06-30, AS503 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +21 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 | 285 | 86% |
| 16-30 min | 19 | 6% |
| 31-60 min | 8 | 2% |
| 61-120 min | 10 | 3% |
| 2+ hrs | 8 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 80% | +12 min |
| 2025-08 | 31 | 90% | +1 min |
| 2025-09 | 30 | 83% | 0 min |
| 2025-10 | 31 | 84% | -4 min |
| 2025-11 | 30 | 90% | -5 min |
| 2025-12 | 31 | 74% | +9 min |
| 2026-01 | 29 | 93% | -2 min |
| 2026-02 | 28 | 89% | +4 min |
| 2026-03 | 28 | 79% | +6 min |
| 2026-04 | 30 | 97% | -13 min |
| 2026-05 | 12 | 100% | -15 min |
| 2026-06 | 20 | 85% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 47 | 85% |
| Tue | 47 | 91% |
| Wed | 48 | 88% |
| Thu | 48 | 85% |
| Fri | 46 | 87% |
| Sat | 47 | 85% |
| Sun | 47 | 83% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…