Cheapest return flights from Washington to San Jose in April from $243

Best time to book flights for Washington (IAD) to San Jose (SJO) flights at AirHint

AirHint found the following cheapest return flights from Washington (IAD) to San Jose (SJO) in April 2025 (see full year).

Return flights

04 Apr - 08 Apr Avianca
04 Apr - 09 Apr Volaris El Salvador
14 Apr - 21 Apr Volaris El Salvador
14 Apr - 18 Apr Volaris El Salvador
16 Apr - 21 Apr Copa
19 Apr - 27 Apr Volaris El Salvador
13 Apr - 18 Apr Volaris El Salvador
13 Apr - 21 Apr Volaris El Salvador
18 Apr - 26 Apr Avianca
14 Apr - 20 Apr Volaris El Salvador

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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