Cheapest return flights from Washington to San Jose in March from 278€

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

Return flights

19 Mar - 24 Mar United
18 Mar - 25 Mar United
16 Mar - 23 Mar United
29 Mar - 04 Apr Southwest Airlines
29 Mar - 05 Apr Southwest Airlines
16 Mar - 21 Mar Southwest Airlines
06 Mar - 13 Mar United
28 Mar - 04 Apr Southwest Airlines
08 Mar - 15 Mar Delta

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

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