Cheapest one-way flights from Washington to San Jose in July from $112

AirHint found the following cheapest one-way flights from Washington (IAD) to San Jose (SJO) in July 2025 (see full year).

One-Way flights

23 Jul United
22 Jul United
21 Jul American Airlines
23 Jul Avianca direct
22 Jul Avianca direct
20 Jul Avianca direct
13 Jul United
17 Jul Copa
31 Jul Copa
13 Jul Avianca direct

Also check the deals for return flights from Washington to San Jose in July.

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.

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