AirHint found the following cheapest return flights from Heraklion (HER) to Istanbul (IST) in August 2026 (see full year).

Return flights

22 Aug - 09 Sep	Aegean Airlines	direct
14 Aug - 21 Aug	Aegean Airlines	direct
01 Aug - 06 Aug	Aegean Airlines	direct
01 Aug - 07 Aug	Aegean Airlines	direct
08 Aug - 16 Aug	Aegean Airlines
01 Aug - 04 Aug	Aegean Airlines
02 Aug - 15 Aug	SKY express
02 Aug - 11 Aug	SKY express
02 Aug - 13 Aug	SKY express
02 Aug - 14 Aug	SKY express
26 Aug - 31 Aug	Aegean Airlines	direct

Also check the deals for one-way flights from Heraklion to Istanbul in August.

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 return flights from Heraklion to Istanbul in August from 137€

Return flights