Air Transport International8C
Flights 8C4305 varies Tu Th
live
Direct flights from Ontario (ONT) to Cincinnati / Covington (CVG): 9 nonstop departures observed each week across 2 airlines. 75% of the last 8 operated flights arrived within 15 minutes of schedule. The median arrival is 10 minutes late. No cancellations were recorded across the 8 tracked flights. The nonstop covers 2,977 km, an estimated 4 hours 19 minutes in the air. Measured by Pro Flight Search from live flight boards at Ontario and Cincinnati / Covington. Updated 15 September 2026 at 22:18 UTC.
ONT
Ontario
busy · +19
CVG
Cincinnati / Covington
smooth · +0
2,977 km · ~4h 19m est.
Runs mixed · 2 airlines · 9x weekly · nonstop
75% on time
of the last 8 operated ONT → CVG flights arrived within 15 minutes
Median arrival delay is +10 min. 0 of 8 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+10 minacross the last 8 operated legs
Flight time~4h 19mestimated from route distance
Weekly departures9x2 direct airlines on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Air Transport InternationalAlaska Airlines
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 daysAlaska AirlinesAS86% on time
Flights AS2605 10:00 daily
History
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
Current conditions put the pressure at CVG: 45% odds of a 15+ minute delay, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Ontario to Cincinnati / Covington route actually runs
Pro Flight Search records official board updates for nonstop ONT to CVG 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 Cincinnati / Covington (CVG) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ONT-CVG
ONT to CVG questions
Is ONT–CVG running on time right now?
Smooth skies ahead. The departure side at ONT is the weaker end, route health score 87/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from ONT to CVG?
Great-circle distance is 2,977 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 240–285 min gate-to-gate on this route.
How often does ONT–CVG fly?
2 carriers operate this route, around 9 flights a week between them. Compare carrier days and times in the airline list above.
What does the route health score measure?
A blend of departure-side delay at ONT and arrival-side delay at CVG, 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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