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

Return flights

26 Aug - 13 Sep	SKY express
26 Aug - 11 Sep	SKY express
26 Aug - 30 Aug	SKY express
19 Aug - 30 Aug	SKY express
26 Aug - 06 Sep	SKY express
19 Aug - 06 Sep	SKY express
14 Aug - 30 Aug	SKY express
04 Aug - 05 Aug	Vueling Airlines
19 Aug - 25 Aug	SKY express
26 Aug - 07 Sep	SKY express
19 Aug - 07 Sep	SKY express
26 Aug - 08 Sep	SKY express
19 Aug - 08 Sep	SKY express
19 Aug - 24 Aug	SKY express
14 Aug - 19 Aug	SKY express
04 Aug - 09 Aug	Vueling Airlines
19 Aug - 09 Sep	SKY express
14 Aug - 25 Aug	SKY express
29 Aug - 13 Sep	Vueling Airlines
26 Aug - 29 Aug	SKY express

Also check the deals for one-way flights from Istanbul to Lisbon 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 Istanbul to Lisbon in August from 184€

Return flights