Cheapest return flights from Washington to San Jose in July from $234

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 July 2025 (see full year).

Return flights

29 Jul - 05 Aug Volaris El Salvador
04 Jul - 12 Jul American Airlines
08 Jul - 11 Jul Volaris El Salvador
20 Jul - 27 Jul Volaris El Salvador
04 Jul - 12 Jul Avianca direct
08 Jul - 14 Jul Volaris El Salvador
29 Jul - 05 Aug Avianca direct
09 Jul - 12 Jul Avianca direct
16 Jul - 24 Jul Avianca direct
08 Jul - 14 Jul Avianca direct
01 Jul - 08 Jul Volaris El Salvador
04 Jul - 10 Jul Avianca direct

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

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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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