Direct flights from Ontario to San Francisco
28 nonstop flights a week on 3 airlines. Zero layovers — one hop from ONT to SFO.
Flight time: about 56m 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 UAL2363 | 6:08a | 56m | Mon, Tue, Wed, Fri, Sun |
| United UAL2363 | 6:16a | 57m | Thu |
| United UAL2363 | 7:21a | 56m | Sat |
| Frontier FFT1159 | 9:10a | 54m | Sat |
| Frontier FFT1159 | 9:38a | 55m | Wed |
| Frontier FFT1159 | 10:13a | 47m | Sun |
| Frontier FFT1159 | 10:20a | 52m | Mon, Thu |
| Frontier FFT1159 | 10:26a | 1h13m | Fri |
| Frontier FFT1159 | 11:31a | 54m | Tue |
| United UAL1375 | 2:10p | 56m | Wed |
| United UAL1375 | 2:19p | 57m | Tue |
| United UAL1375 | 2:40p | 56m | Fri–Sat |
| United UAL1375 | 2:48p | 55m | Thu, Sun |
| United UAL1375 | 4:24p | 55m | Mon |
| SkyWest SKW5433 | 4:38p | 59m | Tue |
| SkyWest SKW5433 | 6:25p | 1h7m | Sat |
| SkyWest SKW5624 | 7:24p | 57m | Fri |
| SkyWest SKW5624 | 7:29p | 58m | Mon, Sun |
| SkyWest SKW5624 | 7:36p | 1h8m | Thu |
| SkyWest SKW5624 | 7:53p | 57m | Wed |
UnitedThe route
One hop: ONT → SFODrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from Ontario (ONT) to San Francisco (SFO)
Ontario International Airport (ONT) has 28 nonstop flights a week to San Francisco (SFO), operated by Frontier, SkyWest and 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 San Francisco?
The nonstop flight from Ontario (ONT) to San Francisco (SFO) takes about 56m in the air, based on recently observed nonstop departures.
How long does it take to drive from Ontario to San Francisco?
Driving from Ontario to San Francisco takes about 6h 31m, covering roughly 417 miles. The nonstop flight takes about 56m.