Cheapest return flights from Istanbul to Helsinki in December from $226

Best time to book flights for Istanbul (IST) to Helsinki (HEL) flights at AirHint

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

Return flights

29 Dec - 02 Jan airBaltic
11 Dec - 14 Dec Lufthansa
30 Dec - 04 Jan Lufthansa
30 Dec - 03 Jan Lufthansa
11 Dec - 14 Dec Turkish Airlines direct
29 Dec - 02 Jan Turkish Airlines direct
30 Dec - 03 Jan Turkish Airlines direct
30 Dec - 04 Jan Turkish Airlines direct

Also check the deals for one-way flights from Istanbul 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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