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

Return flights

30 Dec - 16 Jan	Aeromexico
16 Dec - 30 Dec	Air Canada
30 Dec - 13 Jan	SWISS
29 Dec - 17 Jan	KLM
17 Dec - 01 Jan	KLM
27 Dec - 09 Jan	KLM
27 Dec - 06 Jan	KLM
18 Dec - 27 Dec	Air France
20 Dec - 27 Dec	KLM
25 Dec - 09 Jan	Air France
18 Dec - 25 Dec	SWISS
18 Dec - 26 Dec	Air France
26 Dec - 09 Jan	KLM
26 Dec - 06 Jan	Aeromexico
26 Dec - 04 Jan	KLM
19 Dec - 27 Dec	Air France

Also check the deals for one-way flights from Manchester 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 Manchester to San Jose in December from 710€

Return flights