Flight OddsAS1254 SEA → ONT
Alaska Airlines · Seattle, WA to Ontario, CA · 106 flights observed, 2025-07-01 to 2025-10-25 · 956 mi
On-time arrival
86%
Median delay
-6 min
90th percentile
+25 min
Cancellation rate
7%
How often is AS1254 on time?
Across 106 flights on SEA → ONT from 2025-07-01 to 2025-10-25, AS1254 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +25 min or later. 7% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 85 | 86% |
| 16-30 min | 4 | 4% |
| 31-60 min | 5 | 5% |
| 61-120 min | 3 | 3% |
| 2+ hrs | 2 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 21 | 86% | +4 min |
| 2025-08 | 25 | 76% | +10 min |
| 2025-09 | 29 | 93% | -7 min |
| 2025-10 | 24 | 88% | +0 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 14 | 86% |
| Tue | 16 | 94% |
| Wed | 17 | 94% |
| Thu | 16 | 75% |
| Fri | 13 | 92% |
| Sat | 10 | 80% |
| Sun | 13 | 77% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…