Cheapest return flights from Newark to San Jose in December from 310€

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

Return flights

02 Dec - 09 Dec United direct
03 Dec - 10 Dec United direct
05 Dec - 12 Dec United direct
05 Dec - 21 Jan United direct
04 Dec - 11 Dec United direct
08 Dec - 15 Dec United direct
08 Dec - 14 Dec United direct
06 Dec - 13 Dec United
01 Dec - 08 Dec United direct
09 Dec - 16 Dec United
10 Dec - 17 Dec United
28 Dec - 04 Jan Allegiant Air
08 Dec - 11 Jan jetBlue
31 Dec - 07 Jan United direct
23 Dec - 08 Jan Allegiant Air
07 Dec - 04 Jan Aeromexico
30 Dec - 06 Jan United direct
29 Dec - 04 Jan Frontier Airlines
29 Dec - 05 Jan United direct
27 Dec - 04 Jan Frontier Airlines

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

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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose

Feel free to contact us with any feedback or request another flight research.