Cheapest return flights from Helsinki to Istanbul in September from $165

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

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

Return flights

05 Sep - 08 Sep Pegasus Airlines direct
12 Sep - 19 Sep Pegasus Airlines direct
07 Sep - 20 Sep Pegasus Airlines direct
13 Sep - 19 Sep Pegasus Airlines direct
15 Sep - 20 Sep Pegasus Airlines direct
05 Sep - 09 Sep Pegasus Airlines direct
12 Sep - 17 Sep Pegasus Airlines direct
16 Sep - 23 Sep Pegasus Airlines
08 Sep - 09 Oct Pegasus Airlines
19 Sep - 28 Sep Pegasus Airlines
21 Sep - 25 Sep Pegasus Airlines

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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