Flight OddsAS1087 ONT → SEA
Alaska Airlines · Ontario, CA to Seattle, WA · 75 flights observed, 2025-07-01 to 2025-10-03 · 956 mi
AS1087 covers more than one route in the data window — the stats below are for ONT → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
58%
Median delay
+4 min
90th percentile
+73 min
Cancellation rate
1%
How often is AS1087 on time?
Across 75 flights on ONT → SEA from 2025-07-01 to 2025-10-03, AS1087 arrived within 15 minutes of schedule 58% of the time. The median arrival delay was +4 min, and the worst 10% of flights arrived +73 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 | 43 | 58% |
| 16-30 min | 3 | 4% |
| 31-60 min | 17 | 23% |
| 61-120 min | 6 | 8% |
| 2+ hrs | 5 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 41% | +45 min |
| 2025-08 | 26 | 58% | +18 min |
| 2025-09 | 17 | 82% | +5 min |
| 2025-10 | 2 | 100% | -11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 13 | 62% |
| Tue | 8 | 63% |
| Wed | 7 | 57% |
| Thu | 14 | 43% |
| Fri | 12 | 58% |
| Sat | 7 | 57% |
| Sun | 13 | 69% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…