By air
Flights from San Francisco to Ontario
Fly from San Francisco to Ontario (ONT), direct — then arrive and explore.
Searched and booked on Aviasales. Head Your Way may earn a commission at no extra cost to you.
Flight details and fares
San Francisco to Ontario at a glance
- Arrival airport
- ONT
- Routing
- Direct found
- Recent fare from
- £47
- Fare found
- 2026-09-09
£47 is the cheapest recent one-way fare our flight-data partner found for San Francisco to Ontario; live prices move daily by date and demand. Check current San Francisco to Ontario fares and pick your dates:
Are there direct flights from San Francisco to Ontario?
Yes, our latest harvest found a direct, non-stop fare for San Francisco to Ontario (found 2026-09-09). Direct availability varies by season and airline, so confirm non-stop routings for your exact dates in the search above.
The fare is the cheapest our flight-data partner (Travelpayouts) found for San Francisco to Ontario, found around 2026-09-09: a recent SIGNAL, NOT a live or guaranteed quote, always check current fares before booking. The direct/indirect status reflects the routing found at that check and can vary by season and date. Airport codes from OurAirports. How Head Your Way compiles its data.