AirHint found the following cheapest one-way flights from Istanbul (IST) to Helsinki (HEL) in July 2025 (see full year).

One-Way flights

17 Jul	Pegasus Airlines	direct
18 Jul	Pegasus Airlines	direct
06 Jul	AJet
14 Jul	Pegasus Airlines
11 Jul	Pegasus Airlines
03 Jul	Pegasus Airlines
05 Jul	Pegasus Airlines
19 Jul	Pegasus Airlines	direct
15 Jul	Pegasus Airlines	direct
23 Jul	Pegasus Airlines	direct

Also check the deals for return flights from Istanbul to Helsinki in July.

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 one-way flights from Istanbul to Helsinki in July from $146

One-Way flights