AirHint found the following cheapest return flights from Dallas (DAL) to Helsinki (HEL) in December 2025 (see full year).
Return flights
| 29 Dec - 13 Jan | Air France | ||
| 12 Dec - 25 Dec | Delta | ||
| 15 Dec - 28 Dec | Scandinavian Airlines | ||
| 16 Dec - 23 Dec | KLM |
Also check the deals for one-way flights from Dallas to Helsinki in December.
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