AirHint found the following cheapest one-way flights from Washington (IAD) to San Jose (SJO) in March 2026 (see full year).
One-Way flights
| 24 Mar | American Airlines | ||
| 22 Mar | Volaris El Salvador | ||
| 26 Mar | Air Canada | ||
| 28 Mar | Volaris El Salvador | ||
| 22 Mar | United | direct | |
| 08 Mar | Copa | ||
| 11 Mar | Copa | ||
| 01 Mar | Copa | ||
| 17 Mar | Copa | ||
| 18 Mar | Copa |
Also check the deals for return flights from Washington to San Jose in March.
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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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