Cheapest return flights from Washington to San Jose in December from $235

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

Return flights

09 Dec - 13 Dec United
08 Dec - 13 Dec United
07 Dec - 09 Dec United
08 Dec - 10 Dec United
09 Dec - 11 Dec United
07 Dec - 10 Dec United
08 Dec - 11 Dec United
11 Dec - 16 Dec American Airlines
02 Dec - 08 Dec American Airlines
06 Dec - 08 Dec American Airlines
13 Dec - 24 Jan United
31 Dec - 05 Jan United
18 Dec - 09 Jan jetBlue
25 Dec - 01 Jan Alaska Airlines
30 Dec - 03 Jan Alaska Airlines
27 Dec - 05 Jan Alaska Airlines
28 Dec - 04 Jan Alaska Airlines
26 Dec - 03 Jan Alaska Airlines
29 Dec - 03 Jan Alaska Airlines
20 Dec - 04 Jan Alaska Airlines

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

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