Cheapest return flights from Washington to San Jose in March from 217€

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

Return flights

03 Mar - 11 Mar United
02 Mar - 05 Mar United
05 Mar - 09 Mar Copa
07 Mar - 11 Mar Copa
04 Mar - 08 Mar Copa
14 Mar - 19 Mar Copa
11 Mar - 16 Mar Copa
12 Mar - 19 Mar Copa
12 Mar - 16 Mar Copa
08 Mar - 13 Mar Copa
30 Mar - 10 Apr Frontier Airlines
25 Mar - 01 Apr Avianca
29 Mar - 04 Apr Frontier Airlines
30 Mar - 04 Apr Copa
28 Mar - 04 Apr Frontier Airlines

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

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