Cheapest return flights from Newark to San Jose in September from 206€

AirHint found the following cheapest return flights from Newark (EWR) to San Jose (SJO) in September 2025 (see full year).

Return flights

10 Sep - 17 Sep United direct
11 Sep - 18 Sep United direct
13 Sep - 20 Sep United direct
21 Sep - 28 Sep United direct
03 Sep - 10 Sep United direct
17 Sep - 24 Sep United direct
26 Sep - 28 Sep United direct
14 Sep - 21 Sep United direct
22 Sep - 29 Sep United direct
23 Sep - 30 Sep United direct
24 Sep - 01 Oct United direct
25 Sep - 02 Oct United direct
26 Sep - 03 Oct United direct
26 Sep - 10 Oct United direct
17 Sep - 01 Oct United direct
23 Sep - 07 Oct United direct
25 Sep - 09 Oct United direct
29 Sep - 13 Oct United direct
27 Sep - 04 Oct United
30 Sep - 07 Oct United

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

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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