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

Return flights

10 Jun - 16 Jun	Arajet
01 Jun - 12 Jun	United
02 Jun - 03 Jun	Spirit Airlines
01 Jun - 03 Jun	Spirit Airlines
01 Jun - 02 Jun	Spirit Airlines
17 Jun - 30 Jun	Arajet
02 Jun - 12 Jun	United
09 Jun - 17 Jun	United
24 Jun - 01 Jul	Arajet
01 Jun - 08 Jun	United	direct
11 Jun - 18 Jun	United	direct
29 Jun - 10 Jul	United
27 Jun - 03 Jul	United	direct
30 Jun - 15 Jul	Spirit Airlines
28 Jun - 04 Jul	United
21 Jun - 11 Jul	Spirit Airlines
30 Jun - 11 Jul	Spirit Airlines
21 Jun - 08 Jul	Spirit Airlines
30 Jun - 08 Jul	Spirit Airlines
27 Jun - 15 Jul	United

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

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 June from 249€

Return flights