AmeriflightA8
Flights A81942 07:20 Sa
live
Direct flights from Ontario (ONT) to San Luis Obispo (SBP): 1 nonstop departure observed each week across 1 airline. 17% of the last 6 operated flights arrived within 15 minutes of schedule. The median arrival is 82 minutes late. No cancellations were recorded across the 6 tracked flights. The nonstop covers 308 km, an estimated 54 minutes in the air. Measured by Pro Flight Search from live flight boards at Ontario and San Luis Obispo. Updated 12 September 2026 at 17:18 UTC.
ONT
Ontario
busy · +23
SBP
San Luis Obispo
tracking
308 km · ~0h 54m est.
Runs rough · 1 airline · 1x weekly · nonstop
17% on time
of the last 6 operated ONT → SBP flights arrived within 15 minutes
Median arrival delay is +82 min. 0 of 6 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+82 minacross the last 6 operated legs
Flight time~0h 54mestimated from route distance
Weekly departures1x1 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 outcomes09-12PCM8694departed+115
09-11PCM8688departed+70
09-11PCM8981departed+5
09-10PCM8688departed+83
09-09PCM8688departed+82
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 San Luis Obispo route actually runs
Pro Flight Search records official board updates for nonstop ONT to SBP 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 San Luis Obispo (SBP) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ONT-SBP
ONT to SBP questions
Is ONT–SBP running on time right now?
Mostly on schedule. The departure side at ONT is the weaker end, route health score 70/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from ONT to SBP?
Great-circle distance is 308 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 52–56 min gate-to-gate on this route.
How often does ONT–SBP fly?
Ameriflight runs the route with about 1 flight a week (sat). 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 SBP, 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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