Cheapest one-way flights from Washington to San Jose in January from $112

AirHint found the following cheapest one-way flights from Washington (DCA) to San Jose (SJO) in January 2026 (see full year).

One-Way flights

20 Jan Southwest Airlines
18 Jan United
19 Jan United
28 Jan United
24 Jan United
21 Jan American Airlines
22 Jan American Airlines
23 Jan American Airlines
25 Jan American Airlines
26 Jan American Airlines

Also check the deals for return flights from Washington to San Jose in January.

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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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