AmeriflightA8
Flights A81902 06:30 Mo Tu We Th Fr
live
Direct flights from Ontario (ONT) to Lancaster (WJF): 5 nonstop departures observed each week across 1 airline. 29% of the last 7 operated flights arrived within 15 minutes of schedule. The median arrival is 91 minutes late. No cancellations were recorded across the 7 tracked flights. The nonstop covers 95 km, an estimated 37 minutes in the air. Measured by Pro Flight Search from live flight boards at Ontario and Lancaster. Updated 18 September 2026 at 17:18 UTC.
ONT
Ontario
heavy · +41
WJF
Lancaster
tracking
95 km · ~0h 37m est.
Runs rough · 1 airline · 5x weekly · nonstop
29% on time
of the last 7 operated ONT → WJF flights arrived within 15 minutes
Median arrival delay is +91 min. 0 of 7 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+91 minacross the last 7 operated legs
Flight time~0h 37mestimated from route distance
Weekly departures5x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Ameriflight
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomes09-18PCM8654departed+91
09-17PCM8654departed+96
09-16PCM8654departed+114
09-15PCM8654departed+119
09-14PCM8660departed+37
Actual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsnext sweep in 120s
How the Ontario to Lancaster route actually runs
Pro Flight Search records official board updates for nonstop ONT to WJF flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Ontario (ONT) to Lancaster (WJF) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ONT-WJF
ONT to WJF questions
Is ONT–WJF running on time right now?
Significant delay risk. The departure side at ONT is the weaker end, route health score 46/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from ONT to WJF?
Great-circle distance is 95 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 37–38 min gate-to-gate on this route.
How often does ONT–WJF fly?
Ameriflight runs the route with about 5 flights a week (mon–fri). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at ONT and arrival-side delay at WJF, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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