Flight OddsAS1118 SEA → ONT
Alaska Airlines · Seattle, WA to Ontario, CA · 94 flights observed, 2025-07-01 to 2025-10-03 · 956 mi
AS1118 covers more than one route in the data window — the stats below are for SEA → ONT, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
77%
Median delay
+4 min
90th percentile
+28 min
Cancellation rate
2%
How often is AS1118 on time?
Across 94 flights on SEA → ONT from 2025-07-01 to 2025-10-03, AS1118 arrived within 15 minutes of schedule 77% of the time. The median arrival delay was +4 min, and the worst 10% of flights arrived +28 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 | 71 | 77% |
| 16-30 min | 12 | 13% |
| 31-60 min | 8 | 9% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 80% | +12 min |
| 2025-08 | 30 | 60% | +11 min |
| 2025-09 | 29 | 93% | -6 min |
| 2025-10 | 3 | 67% | +17 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 12 | 92% |
| Tue | 14 | 79% |
| Wed | 14 | 71% |
| Thu | 14 | 79% |
| Fri | 13 | 62% |
| Sat | 12 | 75% |
| Sun | 13 | 85% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…