AirHint found the following cheapest return flights from Montreal (YUL) to Helsinki (HEL) in December 2025 (see full year).
Return flights
| 31 Dec - 07 Jan | Lufthansa | ||
| 30 Dec - 06 Jan | FrenchBee | ||
| 29 Dec - 05 Jan | Porter Airlines (Canada) Ltd | ||
| 27 Dec - 05 Jan | Air France |
Also check the deals for one-way flights from Montreal to Helsinki in December.
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