AirHint found the following cheapest return flights from Chiang Mai (CNX) to Frankfurt (FRA) in December 2025 (see full year).
Return flights
| 21 Dec - 21 Jan | China Eastern | ||
| 28 Dec - 12 Jan | Etihad Airways | ||
| 29 Dec - 12 Jan | China Eastern | ||
| 21 Dec - 17 Jan | Etihad Airways |
Also check the deals for one-way flights from Chiang Mai to Frankfurt in December.
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