Cheapest one-way flights from Washington to San Jose in May from 131€

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

AirHint found the following cheapest one-way flights from Washington (IAD) to San Jose (SJO) in May 2025 (see full year).

One-Way flights

24 May Avianca
15 May Copa
22 May Copa

Also check the deals for return flights from Washington to San Jose in May.

Skyscanner

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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