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

Return flights

05 Dec - 08 Dec	Delta
08 Dec - 14 Dec	Norse Atlantic Airways
13 Dec - 11 Jan	Norse Atlantic Airways
02 Dec - 09 Dec	SWISS
11 Dec - 23 Dec	Norse Atlantic Airways
05 Dec - 14 Dec	Wizz Air Malta
12 Dec - 27 Dec	Norse Atlantic Airways
06 Dec - 15 Dec	United
11 Dec - 25 Dec	Norse Atlantic Airways
04 Dec - 08 Dec	SWISS
10 Dec - 23 Dec	Transavia France
31 Dec - 10 Jan	Turkish Airlines
29 Dec - 10 Jan	Air Serbia
30 Dec - 10 Jan	ITA Airways
31 Dec - 18 Jan	Turkish Airlines
23 Dec - 12 Jan	Ryanair
17 Dec - 10 Jan	Vueling Airlines
31 Dec - 11 Jan	Turkish Airlines
30 Dec - 11 Jan	Aeroitalia
18 Dec - 10 Jan	Vueling Airlines

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

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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Cheapest return flights from Rome to San Jose in December from $770

Return flights