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	Volaris El Salvador
28 Feb - 08 Mar	Volaris El Salvador
10 Feb - 19 Feb	Avianca
05 Feb - 09 Feb	Volaris El Salvador
25 Feb - 28 Feb	Volaris El Salvador
05 Feb - 08 Feb	Volaris El Salvador
06 Feb - 09 Feb	Avianca
20 Feb - 23 Feb	Frontier Airlines
25 Feb - 25 Feb	Avianca
21 Feb - 25 Feb	Frontier Airlines
19 Feb - 24 Feb	Frontier Airlines
28 Feb - 07 Mar	Avianca
25 Feb - 09 Mar	Volaris El Salvador

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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose

Cheapest return flights from Washington to San Jose in February from $241

Return flights