Cheapest return flights from Washington to San Jose in April from $388

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

Return flights

26 Apr - 02 May jetBlue
19 Apr - 23 Apr United
19 Apr - 26 Apr American Airlines
12 Apr - 14 Apr American Airlines
02 Apr - 07 Apr United
04 Apr - 12 Apr jetBlue
01 Apr - 05 Apr jetBlue
02 Apr - 10 Apr Alaska Airlines
12 Apr - 18 Apr United

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

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