Delta Air LinesDL
Flights DL1926 15:20 We
live
Direct flights from Los Angeles (LAX) to Ontario (ONT): 1 nonstop departure observed each week across 1 airline. The median arrival is on schedule. No cancellations were recorded across the 1 tracked flight. The nonstop covers 75 km, an estimated 36 minutes in the air. Measured by Pro Flight Search from live flight boards at Los Angeles and Ontario. Updated 29 October 2026 at 05:18 UTC.
LAX
Los Angeles
smooth · +8
ONT
Ontario
smooth · +0
75 km · ~0h 36m est.
Running clean · 1 airline · 1x weekly · nonstop
94 / 100
route health from live LAX and ONT delay boards
Median arrival delay is +0 min. 0 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+0 minacross the last 1 arrival
Flight time~0h 36mestimated from route distance
Weekly departures1x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Delta Air Lines
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 outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Conditions are tightest at LAX and ONT: a 43% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +8 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →
next sweep in 120s
How the Los Angeles to Ontario route actually runs
Pro Flight Search records official board updates for nonstop LAX to ONT 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: Los Angeles (LAX) to Ontario (ONT) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/LAX-ONT
LAX to ONT questions
Is LAX–ONT running on time right now?
Smooth skies ahead. The departure side at LAX is the weaker end, route health score 94/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from LAX to ONT?
Great-circle distance is 75 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 35–36 min gate-to-gate on this route.
How often does LAX–ONT fly?
Delta Air Lines runs the route with about 1 flight a week (wed). 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 LAX and arrival-side delay at ONT, 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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