Cheapest return flights from Helsinki to Istanbul in September from 128€

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

Return flights

19 Sep - 23 Sep Norwegian Air Sweden AOC
25 Sep - 02 Oct Pegasus Airlines direct
27 Sep - 30 Sep Norwegian Air Sweden AOC
30 Sep - 03 Oct Norwegian Air Sweden AOC
18 Sep - 24 Sep Norwegian Air Sweden AOC
18 Sep - 23 Sep Norwegian Air Sweden AOC
26 Sep - 04 Oct Scandinavian Airlines
23 Sep - 25 Sep Norwegian Air Sweden AOC
18 Sep - 25 Sep Norwegian Air Sweden AOC
26 Sep - 02 Oct Norwegian Air Sweden AOC
30 Sep - 02 Oct Norwegian Air Sweden AOC
28 Sep - 02 Oct Norwegian Air Sweden AOC
29 Sep - 02 Oct Norwegian Air Sweden AOC
28 Sep - 04 Oct Norwegian Air Sweden AOC
25 Sep - 29 Sep Norwegian Air Sweden AOC
16 Sep - 23 Sep Norwegian Air Sweden AOC
27 Sep - 13 Oct Scandinavian Airlines
26 Sep - 29 Sep Norwegian Air Sweden AOC
25 Sep - 29 Sep Pegasus Airlines direct
29 Sep - 02 Oct Pegasus Airlines direct

Also check the deals for one-way flights from Helsinki to Istanbul in September.

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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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