Cheapest return EWR–SJO flights, December

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

Return flights

10 Dec - 14 Dec Air Canada
11 Dec - 20 Dec Air Canada
10 Dec - 14 Dec United direct
15 Dec - 25 Dec Air Canada
15 Dec - 12 Jan Air Canada
15 Dec - 25 Dec United direct
16 Dec - 25 Dec United direct
17 Dec - 21 Dec United
24 Dec - 30 Dec Volaris El Salvador
24 Dec - 07 Jan Volaris El Salvador
18 Dec - 02 Jan Porter Airlines (Canada) Ltd
24 Dec - 31 Dec Volaris El Salvador
24 Dec - 05 Jan Volaris El Salvador
24 Dec - 01 Jan Volaris El Salvador
19 Dec - 01 Jan Volaris El Salvador
19 Dec - 01 Jan United direct
18 Dec - 02 Jan United direct
23 Dec - 03 Jan United direct

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

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