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

Return flights

17 Dec - 09 Jan	Pegasus Airlines
01 Dec - 08 Dec	Pegasus Airlines	direct
06 Dec - 13 Dec	Pegasus Airlines
13 Dec - 18 Dec	Pegasus Airlines	direct
20 Dec - 27 Dec	Pegasus Airlines
11 Dec - 17 Dec	Pegasus Airlines	direct
20 Dec - 02 Jan	Pegasus Airlines
20 Dec - 02 Jan	Pegasus Airlines	direct
21 Dec - 29 Dec	AJet
30 Dec - 02 Jan	Pegasus Airlines

Also check the deals for one-way flights from Istanbul 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 Istanbul to Helsinki in December from 165€

Return flights