AirHint found the following cheapest return flights from New York (LGA) to Helsinki (HEL) in December 2025 (see full year).

Return flights

03 Dec - 10 Dec	Air Canada
10 Dec - 17 Dec	Air Canada
09 Dec - 16 Dec	Delta
31 Dec - 07 Jan	Air Canada
04 Dec - 11 Dec	Air Canada
06 Dec - 13 Dec	Air Canada
01 Dec - 08 Dec	Air Canada
08 Dec - 15 Dec	Air Canada
16 Dec - 23 Dec	Scandinavian Airlines
25 Dec - 01 Jan	United
15 Dec - 22 Dec	Air Canada
05 Dec - 12 Dec	Air Canada
30 Dec - 06 Jan	Air Canada
29 Dec - 05 Jan	Air Canada
27 Dec - 03 Jan	Air Canada
26 Dec - 02 Jan	Air Canada
28 Dec - 04 Jan	Scandinavian Airlines

Also check the deals for one-way flights from New York to Helsinki in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from New York to Helsinki in December from $394

Return flights