Cheapest return flights from Washington to San Jose in January from 202€

AirHint found the following cheapest return flights from Washington (IAD) to San Jose (SJO) in January 2026 (see full year).

Return flights

20 Jan - 24 Jan United
18 Jan - 21 Jan United
22 Jan - 27 Jan United
12 Jan - 22 Jan United
14 Jan - 20 Jan United
14 Jan - 19 Jan Avianca
19 Jan - 22 Jan Delta
15 Jan - 19 Jan Avianca
15 Jan - 20 Jan Copa
12 Jan - 18 Jan Copa

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

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