Flight OddsAS1242 ONT → SEA
Alaska Airlines · Ontario, CA to Seattle, WA · 50 flights observed, 2025-07-01 to 2025-08-19 · 956 mi
On-time arrival
59%
Median delay
+12 min
90th percentile
+49 min
Cancellation rate
2%
How often is AS1242 on time?
Across 50 flights on ONT → SEA from 2025-07-01 to 2025-08-19, AS1242 arrived within 15 minutes of schedule 59% of the time. The median arrival delay was +12 min, and the worst 10% of flights arrived +49 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 29 | 59% |
| 16-30 min | 12 | 24% |
| 31-60 min | 5 | 10% |
| 61-120 min | 3 | 6% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 57% | +17 min |
| 2025-08 | 19 | 63% | +18 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 83% |
| Tue | 8 | 63% |
| Wed | 7 | 71% |
| Thu | 7 | 43% |
| Fri | 7 | 29% |
| Sat | 7 | 57% |
| Sun | 7 | 71% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…