Cheapest return flights from San Francisco to Ontario in July from 146€

AirHint found the following cheapest return flights from San Francisco (SFO) to Ontario (ONT) in July 2026 (see full year).

Return flights

03 Jul - 21 Jul Frontier Airlines direct
30 Jul - 03 Aug Frontier Airlines direct
31 Jul - 02 Aug Frontier Airlines direct
08 Jul - 08 Jul Southwest Airlines
08 Jul - 14 Jul Southwest Airlines
01 Jul - 08 Jul Southwest Airlines
01 Jul - 06 Jul Southwest Airlines
07 Jul - 07 Jul Southwest Airlines
17 Jul - 20 Jul Southwest Airlines
08 Jul - 09 Jul Southwest Airlines
11 Jul - 15 Jul Southwest Airlines
17 Jul - 24 Jul Southwest Airlines

Also check the deals for one-way flights from San Francisco to Ontario in July.

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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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