AirHint found the following cheapest return flights from St. Louis (STL) to San Jose (SJO) in March 2026 (see full year).
Return flights
| 07 Mar - 12 Mar | American Airlines | ||
| 07 Mar - 14 Mar | American Airlines | ||
| 20 Mar - 28 Mar | Copa | ||
| 14 Mar - 21 Mar | Air Canada |
Also check the deals for one-way flights from St. Louis to San Jose in March.
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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