Direct flights from Ontario to Houston
9 nonstop flights a week on 2 airlines. Zero layovers — one hop from ONT to IAH.
Flight time: about 2h50m 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 UAL1936 | 6:30a | 2h42m | Mon, Tue, Fri, Sun |
| Frontier FFT2412 | 11:17a | 2h58m | Tue |
| Frontier FFT3132 | 6:43p | 2h50m | Thu |
| Frontier FFT3132 | 6:48p | 2h50m | Mon, Sun |
| Frontier FFT3132 | 9:54p | 2h45m | Fri |
UnitedThe route
One hop: ONT → IAHDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from Ontario (ONT) to Houston (IAH)
Ontario International Airport (ONT) has 9 nonstop flights a week to Houston (IAH), operated by Frontier and United. No layovers, no connections — one hop out of ONT and you're there.
This route flies on Monday, Tuesday, Thursday, Friday and Sunday — check the schedule grid above before you pick a travel day. 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 Ontario to Houston?
The nonstop flight from Ontario (ONT) to Houston (IAH) takes about 2h50m in the air, based on recently observed nonstop departures.
How long does it take to drive from Ontario to Houston?
Driving from Ontario to Houston takes about 21h 46m behind the wheel — roughly 1,512 miles, or about 2 days of real driving. The nonstop flight takes about 2h50m.