Cheapest return flights from Helsinki to Istanbul in September from $173

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

Return flights

05 Sep - 12 Sep Pegasus Airlines direct
05 Sep - 13 Sep Pegasus Airlines direct
06 Sep - 10 Sep Pegasus Airlines direct
03 Sep - 11 Sep Pegasus Airlines direct
10 Sep - 24 Sep Pegasus Airlines direct
03 Sep - 17 Sep Pegasus Airlines direct
03 Sep - 10 Sep Pegasus Airlines direct
13 Sep - 20 Sep Pegasus Airlines direct
09 Sep - 12 Sep Pegasus Airlines direct
25 Sep - 30 Sep Pegasus Airlines direct
09 Sep - 08 Oct Pegasus Airlines direct
24 Sep - 08 Oct Pegasus Airlines direct
29 Sep - 10 Oct Pegasus Airlines direct
22 Sep - 10 Oct Pegasus Airlines direct
30 Sep - 06 Oct Pegasus Airlines direct
09 Sep - 17 Oct Pegasus Airlines direct
28 Sep - 05 Oct Pegasus Airlines direct

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

Skyscanner

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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