Direct flights from Ontario to Chicago
7 nonstop flights a week on 1 airline. Zero layovers — one hop from ONT to ORD.
Flight time: about 3h39m nonstop
Which days does it fly?
When does it fly?
Departure times in Ontario local time, from flights observed over the last 7 days.
| Flight | Departs | Duration | Days |
|---|---|---|---|
| United UAL2171 | 6:20a | 3h40m | Mon–Tue |
| United UAL2171 | 6:29a | 3h38m | Wed, Fri, Sun |
| United UAL2171 | 7:16a | 3h41m | Sat |
| United UAL2171 | 7:31a | 3h38m | Thu |
United
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The route
One hop: ONT → ORDDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from Ontario (ONT) to Chicago (ORD)
Ontario International Airport (ONT) has 7 nonstop flights a week to Chicago (ORD), operated by United. No layovers, no connections — one hop out of ONT and you're there.
This route flies every day of the week, so any travel day works. Route data updated July 2026 from observed departures.
Route data updated July 2026 from observed flight departures. Schedules change — always confirm with the airline before booking.
How long is the flight from Ontario to Chicago?
The nonstop flight from Ontario (ONT) to Chicago (ORD) takes about 3h39m in the air, based on recently observed nonstop departures.
How long does it take to drive from Ontario to Chicago?
Driving from Ontario to Chicago takes about 28h 37m behind the wheel — roughly 1,982 miles, or about 3 days of real driving. The nonstop flight takes about 3h39m.