Flight OddsAS665 ONT → SEA
Alaska Airlines · Ontario, CA to Seattle, WA · 125 flights observed, 2025-10-26 to 2026-03-17 · 956 mi
AS665 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
80%
Median delay
-4 min
90th percentile
+37 min
Cancellation rate
2%
How often is AS665 on time?
Across 125 flights on ONT → SEA from 2025-10-26 to 2026-03-17, AS665 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +37 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 | 97 | 80% |
| 16-30 min | 11 | 9% |
| 31-60 min | 8 | 7% |
| 61-120 min | 3 | 2% |
| 2+ hrs | 3 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 67% | +6 min |
| 2025-11 | 28 | 71% | +3 min |
| 2025-12 | 14 | 71% | +8 min |
| 2026-01 | 31 | 81% | +9 min |
| 2026-02 | 28 | 89% | +11 min |
| 2026-03 | 15 | 87% | -1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 19 | 79% |
| Tue | 18 | 83% |
| Wed | 17 | 71% |
| Thu | 17 | 82% |
| Fri | 16 | 69% |
| Sat | 18 | 83% |
| Sun | 17 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…