Cheapest one-way flights from San Francisco to Ontario in April from 85€

AirHint found the following cheapest one-way flights from San Francisco (SFO) to Ontario (ONT) in April 2026 (see full year).

One-Way flights

22 Apr United direct

Also check the deals for return flights from San Francisco to Ontario in April.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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