Cheapest return SFO–SJO flights, July

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

Return flights

29 Jul - 13 Aug Frontier Airlines
08 Jul - 13 Jul Frontier Airlines
13 Jul - 20 Jul Frontier Airlines
01 Jul - 15 Jul Frontier Airlines
31 Jul - 06 Aug Alaska Airlines
15 Jul - 22 Jul Avianca
13 Jul - 21 Jul Frontier Airlines
03 Jul - 10 Jul Frontier Airlines
15 Jul - 22 Jul United direct
01 Jul - 15 Jul United direct
26 Jul - 01 Aug Frontier Airlines
24 Jul - 31 Jul United direct
14 Jul - 20 Jul Frontier Airlines
24 Jul - 01 Aug United direct
26 Jul - 01 Aug United direct
31 Jul - 06 Aug United direct
29 Jul - 13 Aug United direct

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

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