AirHint found the following cheapest return flights from Madison (MSN) to Frankfurt (FRA) in December 2025 (see full year).
Return flights
| 23 Dec - 17 Jan | Air France | ||
| 25 Dec - 17 Jan | KLM | ||
| 24 Dec - 17 Jan | KLM | ||
| 22 Dec - 17 Jan | Air France | ||
| 21 Dec - 10 Jan | KLM | ||
| 20 Dec - 10 Jan | Air France |
Also check the deals for one-way flights from Madison to Frankfurt in December.
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