AirHint found the following cheapest return flights from Duesseldorf (DUS) to San Jose (SJO) in December 2025 (see full year).
Return flights
| 25 Dec - 28 Dec | Iberia | ||
| 29 Dec - 25 Jan | Iberia | ||
| 27 Dec - 25 Jan | Iberia | ||
| 25 Dec - 02 Jan | Iberia | ||
| 26 Dec - 24 Jan | Iberia | ||
| 27 Dec - 24 Jan | LOT | ||
| 29 Dec - 05 Jan | KLM |
Also check the deals for one-way flights from Duesseldorf to San Jose in December.
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