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

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

AirHint found the following cheapest return flights from Washington (IAD) to San Jose (SJO) in June 2025 (see full year).

Return flights

06 Jun - 09 Jun Avianca
20 Jun - 23 Jun Avianca
18 Jun - 23 Jun Avianca
02 Jun - 05 Jun Copa
11 Jun - 15 Jun Avianca
04 Jun - 09 Jun Avianca
18 Jun - 22 Jun Avianca
27 Jun - 30 Jun Avianca
20 Jun - 25 Jun Avianca
10 Jun - 17 Jun Avianca
27 Jun - 05 Jul Avianca
24 Jun - 01 Jul Avianca direct
28 Jun - 05 Jul Volaris El Salvador
27 Jun - 05 Jul Avianca direct

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

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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose