Direct flights from Chicago to Ontario
7 nonstop flights a week on 1 airline. Zero layovers — one hop from ORD to ONT.
Flight time: about 3h45m nonstop
Which days does it fly?
When does it fly?
Departure times in Chicago local time, from flights observed over the last 7 days.
| Flight | Departs | Duration | Days |
|---|---|---|---|
| United UAL2299 | 8:44p | 3h37m | Fri |
| United UAL2299 | 9:12p | 3h44m | Mon, Wed |
| United UAL2299 | 9:42p | 3h45m | Sat |
| United UAL2299 | 10:02p | 3h45m | Sun |
| United UAL2299 | 10:07p | 4h3m | Tue |
| United UAL2299 | 11:31p | 3h34m | Thu |
United
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The route
One hop: ORD → ONTDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from Chicago (ORD) to Ontario (ONT)
Chicago O'Hare International Airport (ORD) has 7 nonstop flights a week to Ontario (ONT), operated by United. No layovers, no connections — one hop out of ORD and you're there.
This route flies every day of the week, so any travel day works. Route data updated September 2026 from observed departures.
Route data updated September 2026 from observed flight departures. Schedules change — always confirm with the airline before booking.
How long is the flight from Chicago to Ontario?
The nonstop flight from Chicago (ORD) to Ontario (ONT) takes about 3h45m in the air, based on recently observed nonstop departures.
How long does it take to drive from Chicago to Ontario?
Driving from Chicago to Ontario takes about 28h 37m behind the wheel — roughly 1,982 miles, or about 3 days of real driving. The nonstop flight takes about 3h45m.