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

Return flights

27 Jan - 03 Feb	United	direct
14 Jan - 21 Jan	United
21 Jan - 28 Jan	United
23 Jan - 30 Jan	United
28 Jan - 04 Feb	United
30 Jan - 06 Feb	United
26 Jan - 02 Feb	United
20 Jan - 27 Jan	United	direct
31 Jan - 07 Feb	United
24 Jan - 31 Jan	United
13 Jan - 20 Jan	United
28 Jan - 01 Feb	United
06 Jan - 20 Jan	United
29 Jan - 05 Feb	United
22 Jan - 29 Jan	United	direct
25 Jan - 01 Feb	United
09 Jan - 16 Jan	United
08 Jan - 15 Jan	United

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

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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Cheapest return flights from Newark to San Jose in January from 223€

Return flights