AirHint found the following cheapest return flights from Dallas (DAL) to Helsinki (HEL) in December 2025 (see full year).
Return flights
| 03 Dec - 09 Dec | Delta | ||
| 03 Dec - 07 Dec | Delta | ||
| 02 Dec - 08 Dec | Delta | ||
| 20 Dec - 10 Jan | Air France | ||
| 25 Dec - 04 Jan | Delta | ||
| 17 Dec - 31 Dec | Delta | ||
| 22 Dec - 02 Jan | KLM | ||
| 20 Dec - 29 Dec | Air France |
Also check the deals for one-way flights from Dallas to Helsinki in December.
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