Cheapest return flights from Istanbul to Helsinki in September from $154

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

Return flights

11 Sep - 20 Sep Pegasus Airlines direct
27 Sep - 04 Oct Pegasus Airlines direct
11 Sep - 16 Sep Pegasus Airlines direct
10 Sep - 16 Sep Pegasus Airlines direct
06 Sep - 16 Sep Pegasus Airlines direct
15 Sep - 22 Sep Pegasus Airlines direct
15 Sep - 20 Sep Pegasus Airlines direct
30 Sep - 08 Oct Pegasus Airlines
16 Sep - 20 Sep Pegasus Airlines direct
13 Sep - 20 Sep Pegasus Airlines direct
10 Sep - 13 Sep Pegasus Airlines direct
06 Sep - 13 Sep Pegasus Airlines direct
27 Sep - 02 Oct Pegasus Airlines
30 Sep - 06 Oct Pegasus Airlines
30 Sep - 05 Oct Pegasus Airlines direct
30 Sep - 06 Oct Pegasus Airlines direct

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

Book a cheap hotel in Helsinki

Cheap car rent in Helsinki

Feel free to contact us with any feedback or request another flight research.