Air Transport International8C
Flights 8C4364 03:00 Fr
live
Direct flights from Ontario (ONT) to Chicago/Rockford (RFD): 1 nonstop departure observed each week across 1 airline. The median arrival is 33 minutes late. No cancellations were recorded across the 1 tracked flight. The nonstop covers 2,637 km, an estimated 3 hours 53 minutes in the air. Measured by Pro Flight Search from live flight boards at Ontario and Chicago/Rockford. Updated 4 September 2026 at 17:18 UTC.
ONT
Ontario
busy · +16
RFD
Chicago/Rockford
tracking
2,637 km · ~3h 53m est.
Running clean · 1 airline · 1x weekly · nonstop
78 / 100
route health from live ONT and RFD delay boards
Median arrival delay is +33 min. 0 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+33 minacross the last 1 operated legs
Flight time~3h 53mestimated from route distance
Weekly departures1x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Air Transport International
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 boardsnext sweep in 120s
How the Ontario to Chicago/Rockford route actually runs
Pro Flight Search records official board updates for nonstop ONT to RFD 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 Chicago/Rockford (RFD) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ONT-RFD
ONT to RFD questions
Is ONT–RFD running on time right now?
Mostly on schedule. The departure side at ONT is the weaker end, route health score 78/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from ONT to RFD?
Great-circle distance is 2,637 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 216–256 min gate-to-gate on this route.
How often does ONT–RFD fly?
Air Transport International runs the route with about 1 flight a week (fri). 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 RFD, 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.
.