Cheapest return flights from Oslo to San Jose in December from 667€

AirHint found the following cheapest return flights from Oslo (OSL) to San Jose (SJO) in December 2025 (see full year).

Return flights

09 Dec - 20 Jan Finnair
30 Dec - 16 Jan Finnair
25 Dec - 10 Jan TAP
26 Dec - 10 Jan Scandinavian Airlines
23 Dec - 30 Dec KLM
25 Dec - 06 Jan TAP
16 Dec - 04 Jan Finnair
26 Dec - 05 Jan Norwegian Air Sweden AOC
29 Dec - 29 Dec KLM

Also check the deals for one-way flights from Oslo to San Jose in December.

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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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