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

Return flights

22 Feb - 24 Feb	Avianca
21 Feb - 02 Mar	Avianca
28 Feb - 04 Mar	Copa
28 Feb - 05 Mar	Copa
05 Feb - 10 Feb	Copa
05 Feb - 08 Feb	Copa
04 Feb - 12 Feb	Copa
05 Feb - 09 Feb	Copa
28 Feb - 07 Mar	Copa
15 Feb - 21 Feb	Frontier Airlines
09 Feb - 20 Feb	Frontier Airlines
19 Feb - 23 Feb	Avianca
27 Feb - 02 Mar	Avianca
27 Feb - 08 Mar	Breeze Airways
06 Feb - 08 Feb	Copa
21 Feb - 01 Mar	Copa
28 Feb - 01 Mar	Copa
26 Feb - 01 Mar	Copa
21 Feb - 28 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 241€

Return flights