AirHint found the following cheapest return flights from Frankfurt (FRA) to San Jose (SJO) in January 2026 (see full year).

Return flights

13 Jan - 26 Jan	Air Canada
20 Jan - 04 Feb	Air Canada
30 Jan - 18 Feb	Air Canada
27 Jan - 10 Feb	Air Canada
12 Jan - 09 Feb	Air Canada
21 Jan - 04 Feb	Air Canada
12 Jan - 02 Feb	Air Canada
13 Jan - 27 Jan	Air Canada
27 Jan - 06 Feb	Air Canada
20 Jan - 03 Feb	Air Canada
27 Jan - 07 Feb	Air Canada
31 Jan - 18 Feb	Air Canada
17 Jan - 29 Jan	Air Canada
01 Jan - 20 Jan	KLM
01 Jan - 19 Jan	KLM
10 Jan - 27 Jan	Air Canada
16 Jan - 28 Jan	Air Canada
01 Jan - 22 Jan	KLM
10 Jan - 24 Jan	Air Canada
08 Jan - 29 Jan	United

Also check the deals for one-way flights from Frankfurt to San Jose in January.

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 Frankfurt to San Jose in January from $638

Return flights