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Cheapest one-way flights from Newark (EWR) to San Jose (SJO), September

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Dates, airline, and price
Dates	Airline	Price
08 Sep	United Direct Flight
14 Sep	United Direct Flight
10 Sep	United
12 Sep	Delta
11 Sep	United
16 Sep	United
16 Sep	United Direct Flight
11 Sep	United Direct Flight
04 Sep	United Direct Flight
29 Sep	Delta

deals for return flights from Newark to San Jose in September.

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Updated Jul 17, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Newark (EWR) to San Jose (SJO), September

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