Cheapest return flights from San Francisco to Ontario in June from 48€

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

Return flights

09 Jun - 09 Jun Frontier Airlines direct
10 Jun - 17 Jun Frontier Airlines direct
09 Jun - 23 Jun Frontier Airlines direct
30 Jun - 21 Jul Frontier Airlines direct
16 Jun - 23 Jun Frontier Airlines direct
05 Jun - 08 Jun Frontier Airlines direct
23 Jun - 07 Jul Frontier Airlines direct
17 Jun - 24 Jun Frontier Airlines
17 Jun - 24 Jun Frontier Airlines direct
23 Jun - 06 Jul Frontier Airlines direct
09 Jun - 16 Jun Frontier Airlines direct
02 Jun - 02 Jun Southwest Airlines
16 Jun - 02 Jul Frontier Airlines
15 Jun - 22 Jun Frontier Airlines direct
16 Jun - 02 Jul Frontier Airlines direct
24 Jun - 06 Jul Frontier Airlines direct
24 Jun - 08 Jul Frontier Airlines
29 Jun - 01 Jul Southwest Airlines
24 Jun - 08 Jul United direct

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

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