Is ONT–TUS running on time right now?
Mostly on schedule. The departure side at ONT is the weaker end, route health score 79/100. The airports section above carries the live status and delay window at both ends.
live
Direct flights from Ontario (ONT) to Tucson (TUS) run nonstop between the two airports. The nonstop covers 657 km, an estimated 1 hour 21 minutes in the air.
ONT
Ontario
busy · +17
TUS
Tucson
busy · +15
657 km · ~1h 21m est.
Running clean · 0 airlines · nonstop
79 / 100
route health from live ONT and TUS delay boards
Search live fares for this route →Flight time~1h 21mestimated from route distance
Airports right now
live boardsWeather lens
Current conditions put the pressure at ONT and TUS: 48% odds of a 15+ minute delay and around +16 min expected when it bites, 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 Tucson route actually runs
Pro Flight Search tracks every published board update for nonstop ONT to TUS flights: 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. Fares link straight to the operating airline with no markups.
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 Tucson (TUS) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ONT-TUS
ONT to TUS questions
How long is the flight from ONT to TUS?
Great-circle distance is 657 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 76–86 min gate-to-gate on this route.
What does the route health score measure?
A blend of departure-side delay at ONT and arrival-side delay at TUS, 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.
.