Cheapest return flights from Washington to San Jose in April from 328€

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

Return flights

17 Apr - 20 Apr United
11 Apr - 15 Apr Delta
16 Apr - 20 Apr United
01 Apr - 07 Apr United
07 Apr - 11 Apr United
03 Apr - 15 Apr Southwest Airlines
03 Apr - 14 Apr Southwest Airlines
03 Apr - 13 Apr Southwest Airlines
04 Apr - 11 Apr United
04 Apr - 12 Apr Southwest Airlines

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

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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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