AS1086 SEA → ONT

Alaska Airlines · Seattle, WA to Ontario, CA · 112 flights observed, 2025-07-01 to 2025-10-24 · 956 mi

This flight has been getting more reliable recently — 2025-10's on-time rate (90%) is well above the 62% average from earlier months.

AS1086 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
67%
Median delay
+5 min
90th percentile
+45 min
Cancellation rate
0%

How often is AS1086 on time?

Across 112 flights on SEA → ONT from 2025-07-01 to 2025-10-24, AS1086 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +45 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time7567%
16-30 min1614%
31-60 min1413%
61-120 min44%
2+ hrs33%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073040%+33 min
2025-083158%+14 min
2025-093087%-8 min
2025-102190%+8 min

Performance by day of week

DayFlightsOn-time
Mon1669%
Tue1776%
Wed1782%
Thu1759%
Fri1669%
Sat1354%
Sun1656%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…