Cheapest return flights from San Francisco to Helsinki in December from 483€

AirHint found the following cheapest return flights from San Francisco (SFO) to Helsinki (HEL) in December 2025 (see full year).

Return flights

07 Dec - 14 Dec Scandinavian Airlines
03 Dec - 07 Dec Lufthansa
11 Dec - 28 Dec Alaska Airlines
24 Dec - 03 Jan SWISS
19 Dec - 30 Dec Hawaiian Airlines
16 Dec - 29 Dec Lufthansa
18 Dec - 30 Dec Lufthansa

Also check the deals for one-way flights from San Francisco to Helsinki in December.

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