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

Return flights

26 Nov - 03 Dec	British Airways
26 Nov - 10 Dec	British Airways
25 Nov - 02 Dec	British Airways
25 Nov - 10 Dec	British Airways
25 Nov - 09 Dec	British Airways
25 Nov - 06 Dec	British Airways
26 Nov - 09 Dec	British Airways
25 Nov - 30 Nov	British Airways
03 Nov - 02 Dec	Delta

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

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 Boston to Helsinki in November from 281€

Return flights