Cheapest return flights from Washington to San Jose in April from 267€

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

Return flights

29 Apr - 04 May Copa
11 Apr - 22 Apr Copa
26 Apr - 03 May Avianca
30 Apr - 04 May Avianca
14 Apr - 18 Apr Avianca
22 Apr - 26 Apr Avianca
14 Apr - 17 Apr Avianca
08 Apr - 21 Apr Avianca
18 Apr - 26 Apr Avianca
17 Apr - 23 Apr Copa
19 Apr - 28 Apr Avianca
19 Apr - 26 Apr Avianca
23 Apr - 30 Apr Avianca

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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