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

Return flights

22 Jan - 27 Jan	United
20 Jan - 27 Jan	United
20 Jan - 07 Feb	United
28 Jan - 07 Feb	Spirit Airlines
24 Jan - 07 Feb	Spirit Airlines
28 Jan - 10 Feb	Spirit Airlines
28 Jan - 11 Feb	Spirit Airlines
28 Jan - 03 Feb	Spirit Airlines
28 Jan - 04 Feb	Spirit Airlines
24 Jan - 10 Feb	Spirit Airlines
24 Jan - 11 Feb	Spirit Airlines
24 Jan - 03 Feb	Spirit Airlines
19 Jan - 29 Jan	United
10 Jan - 31 Jan	United
24 Jan - 27 Jan	Spirit Airlines
28 Jan - 31 Jan	Spirit Airlines
24 Jan - 28 Jan	Spirit Airlines
24 Jan - 31 Jan	Spirit Airlines
23 Jan - 27 Jan	United
19 Jan - 26 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 236€

Return flights