AirHint found the following cheapest return flights from Oslo (OSL) to San Jose (SJO) in January 2026 (see full year).
Return flights
| 24 Jan - 07 Feb | Air France | ||
| 27 Jan - 08 Feb | Ryanair | ||
| 31 Jan - 26 Feb | Wizz Air Malta | ||
| 22 Jan - 29 Jan | KLM |
Also check the deals for one-way flights from Oslo to San Jose in January.
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