AirHint found the following cheapest return flights from Santorini (Thira) (JTR) to Istanbul (IST) in August 2025 (see full year).

Return flights

05 Aug - 09 Aug	Aegean Airlines	direct
12 Aug - 16 Aug	Aegean Airlines	direct
30 Aug - 31 Aug	Aegean Airlines
16 Aug - 26 Aug	Aegean Airlines	direct
24 Aug - 12 Sep	SKY express
24 Aug - 09 Sep	SKY express
24 Aug - 04 Sep	SKY express
24 Aug - 02 Sep	SKY express
24 Aug - 25 Aug	SKY express
24 Aug - 13 Sep	SKY express
17 Aug - 27 Aug	Aegean Airlines
22 Aug - 27 Aug	Aegean Airlines
24 Aug - 28 Aug	SKY express
24 Aug - 30 Aug	SKY express
24 Aug - 29 Aug	SKY express
24 Aug - 10 Sep	SKY express
24 Aug - 01 Sep	SKY express
24 Aug - 03 Sep	SKY express
24 Aug - 05 Sep	SKY express
24 Aug - 08 Sep	SKY express

Also check the deals for one-way flights from Santorini (Thira) 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 Santorini (Thira) to Istanbul in August from 158€

Return flights