Cheapest return flights from Ontario to San Francisco in July from 109€

AirHint found the following cheapest return flights from Ontario (ONT) to San Francisco (SFO) in July 2025 (see full year).

Return flights

23 Jul - 30 Jul United direct
30 Jul - 30 Jul United direct
29 Jul - 05 Aug United direct
30 Jul - 03 Aug United direct
24 Jul - 26 Jul United direct
25 Jul - 28 Jul Frontier Airlines direct
26 Jul - 26 Jul United direct
31 Jul - 03 Aug Frontier Airlines
27 Jul - 29 Jul United direct
30 Jul - 02 Aug United direct
24 Jul - 30 Jul United direct
28 Jul - 31 Jul Frontier Airlines
24 Jul - 28 Jul Frontier Airlines
24 Jul - 27 Jul United direct
25 Jul - 01 Aug Frontier Airlines direct
30 Jul - 06 Aug Southwest Airlines
26 Jul - 02 Aug United direct
28 Jul - 02 Aug Southwest Airlines
31 Jul - 03 Aug United direct
23 Jul - 02 Aug Southwest Airlines

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

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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