AirHint found the following cheapest return flights from Oslo (OSL) to San Jose (SJO) in October 2025 (see full year).
Return flights
| 24 Oct - 14 Nov | Icelandair | ||
| 24 Oct - 21 Nov | Icelandair | ||
| 19 Oct - 26 Oct | Norwegian |
Also check the deals for one-way flights from Oslo to San Jose in October.
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