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

Return flights

05 Feb - 10 Feb	Avianca
19 Feb - 23 Feb	Volaris El Salvador
26 Feb - 02 Mar	Volaris El Salvador
11 Feb - 16 Feb	Volaris El Salvador
11 Feb - 15 Feb	Volaris El Salvador
20 Feb - 23 Feb	Avianca
13 Feb - 16 Feb	Avianca

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

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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Cheapest return flights from Washington to San Jose in February from $240

Return flights