AirHint found the following cheapest return flights from Heraklion (HER) to Istanbul (IST) in July 2025 (see full year).

Return flights

31 Jul - 04 Aug	Aegean Airlines
31 Jul - 07 Aug	Aegean Airlines
28 Jul - 29 Jul	FlyOne (Romania)
30 Jul - 05 Aug	Aegean Airlines
29 Jul - 05 Aug	Aegean Airlines
29 Jul - 04 Aug	Aegean Airlines
29 Jul - 01 Aug	Aegean Airlines
30 Jul - 06 Aug	Aegean Airlines
29 Jul - 05 Aug	Aegean Airlines	direct
29 Jul - 04 Aug	Aegean Airlines	direct
28 Jul - 29 Jul	Aegean Airlines	direct
27 Jul - 07 Aug	SKY express
27 Jul - 30 Jul	SKY express
27 Jul - 28 Jul	SKY express
27 Jul - 29 Jul	SKY express

Also check the deals for one-way flights from Heraklion to Istanbul 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 return flights from Heraklion to Istanbul in July from 230€

Return flights