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

Return flights

09 Aug - 19 Aug	SKY express
30 Aug - 16 Sep	SKY express
30 Aug - 09 Sep	SKY express
09 Aug - 14 Aug	SKY express
09 Aug - 12 Aug	SKY express
26 Aug - 16 Sep	SKY express
30 Aug - 18 Sep	SKY express
21 Aug - 09 Sep	SKY express
26 Aug - 09 Sep	SKY express
09 Aug - 28 Aug	SKY express
20 Aug - 25 Aug	Pegasus Airlines
30 Aug - 11 Sep	SKY express
17 Aug - 24 Aug	TAP
30 Aug - 12 Sep	SKY express
30 Aug - 07 Sep	SKY express
30 Aug - 19 Sep	SKY express
09 Aug - 27 Aug	SKY express
18 Aug - 25 Aug	Aegean Airlines
16 Aug - 19 Aug	SKY express
09 Aug - 20 Aug	SKY express

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 194€

Return flights