Cheapest return flights from Newark to San Jose in September from 386€

Best time to book flights for Newark (EWR) to San Jose (SJO) flights at AirHint

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

Return flights

16 Sep - 23 Sep Delta
20 Sep - 01 Oct Delta
16 Sep - 22 Sep Delta
15 Sep - 21 Sep Air Canada
04 Sep - 14 Sep Delta

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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