Is ONT–BWI running on time right now?
Smooth skies ahead. The departure side at ONT is the weaker end, route health score 92/100. The airports section above carries the live status and delay window at both ends.
live
Direct flights from Ontario (ONT) to Baltimore (BWI) run nonstop between the two airports. The nonstop covers 3,666 km, an estimated 5 hours 12 minutes in the air.
ONT
Ontario
smooth · +12
BWI
Baltimore
smooth · +0
3,666 km · ~5h 12m est.
Running clean · 0 airlines · nonstop
92 / 100
route health from live ONT and BWI delay boards
Flight time~5h 12mestimated from route distance
Airports right now
live boardsWeather lens
Current conditions put the pressure at ONT: 39% odds of a 15+ minute delay and around +8 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 Baltimore route actually runs
Pro Flight Search records official board updates for nonstop ONT to BWI 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
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Suggested citation
Pro Flight Search — Ontario (ONT) to Baltimore (BWI) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ONT-BWI
ONT to BWI questions
How long is the flight from ONT to BWI?
Great-circle distance is 3,666 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 289–344 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 BWI, 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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