Cheapest return flights from San Jose to Frankfurt in December from $843

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

Return flights

09 Dec - 13 Jan Air France
12 Dec - 01 Jan Air France
10 Dec - 17 Dec Air France
16 Dec - 01 Jan KLM
26 Dec - 10 Jan Air France
23 Dec - 17 Jan Air France
20 Dec - 14 Jan KLM
20 Dec - 17 Jan Air France
09 Dec - 13 Jan Lufthansa direct
30 Dec - 31 Jan KLM
09 Dec - 03 Jan Air France
12 Dec - 19 Dec Air France
13 Dec - 20 Dec Air France
13 Dec - 20 Dec Lufthansa direct

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

Skyscanner

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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