AirHint found the following cheapest return flights from Cardiff (CWL) to San Jose (SJO) in March 2026 (see full year).
Return flights
| 14 Mar - 28 Mar | Vueling Airlines | ||
| 18 Mar - 04 Apr | Ryanair | ||
| 04 Mar - 18 Mar | KLM |
Also check the deals for one-way flights from Cardiff to San Jose in March.
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