Cheapest return flights from Newark to San Jose in September from 290€

AirHint found the following cheapest return flights from Newark (EWR) to San Jose (SJO) in September 2026 (see full year).

Return flights

02 Sep - 23 Sep Arajet
11 Sep - 14 Sep United
04 Sep - 05 Sep Spirit Airlines
09 Sep - 17 Sep Delta
01 Sep - 08 Sep United direct
04 Sep - 07 Sep Spirit Airlines
03 Sep - 07 Sep United
04 Sep - 08 Sep United direct
04 Sep - 07 Sep United direct

Also check the deals for one-way flights from Newark to San Jose in September.

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