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

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

Return flights

06 May - 10 May Copa
06 May - 17 May Copa
08 May - 17 May Avianca
02 May - 09 May Copa
02 May - 06 May Copa
30 May - 01 Jun Copa
08 May - 11 May United
07 May - 13 May United
16 May - 18 May Avianca
15 May - 17 May Avianca
16 May - 20 May Avianca
30 May - 04 Jun United
28 May - 04 Jun Avianca
30 May - 06 Jun Avianca

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

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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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