Cheapest return flights from Boston to Helsinki in December from 281€

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

Return flights

09 Dec - 16 Dec Finnair
03 Dec - 10 Dec British Airways
01 Dec - 08 Dec British Airways
02 Dec - 09 Dec British Airways
03 Dec - 24 Dec Finnair
01 Dec - 13 Dec Finnair
02 Dec - 16 Dec Finnair
03 Dec - 11 Dec British Airways
09 Dec - 23 Dec Finnair
01 Dec - 19 Dec Finnair
24 Dec - 14 Jan Finnair
30 Dec - 20 Jan Finnair
31 Dec - 21 Jan Finnair
24 Dec - 13 Jan Finnair
30 Dec - 13 Jan Finnair
30 Dec - 14 Jan Finnair
31 Dec - 13 Jan Finnair
24 Dec - 01 Jan Icelandair
25 Dec - 01 Jan Icelandair
16 Dec - 06 Jan Lufthansa

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

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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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