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

Return flights

30 Aug - 16 Sep	SKY express
09 Aug - 19 Aug	SKY express
09 Aug - 26 Aug	SKY express
05 Aug - 19 Aug	SKY express
05 Aug - 26 Aug	SKY express
28 Aug - 16 Sep	SKY express
26 Aug - 16 Sep	SKY express
30 Aug - 18 Sep	SKY express
30 Aug - 02 Sep	SKY express
13 Aug - 26 Aug	Pegasus Airlines
30 Aug - 06 Sep	SKY express
28 Aug - 09 Sep	SKY express
21 Aug - 09 Sep	SKY express
26 Aug - 09 Sep	SKY express
27 Aug - 16 Sep	Vueling Airlines
14 Aug - 19 Aug	SKY express
14 Aug - 26 Aug	SKY express
21 Aug - 26 Aug	SKY express
09 Aug - 28 Aug	SKY express
13 Aug - 21 Aug	Pegasus Airlines

Also check the deals for one-way flights from Lisbon 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 Lisbon to Istanbul in August from $232

Return flights