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

Return flights

08 Jul - 22 Jul	SKY express
17 Jul - 29 Jul	SKY express
17 Jul - 28 Jul	SKY express
14 Jul - 17 Jul	Aegean Airlines
17 Jul - 30 Jul	SKY express
14 Jul - 21 Jul	Aegean Airlines
21 Jul - 01 Aug	Aegean Airlines
07 Jul - 14 Jul	Aegean Airlines
24 Jul - 07 Aug	SKY express
23 Jul - 30 Jul	Aegean Airlines
16 Jul - 30 Jul	Aegean Airlines
18 Jul - 29 Jul	Lufthansa
31 Jul - 09 Aug	SKY express
21 Jul - 01 Aug	Turkish Airlines	direct

Also check the deals for one-way flights from Lisbon 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 Lisbon to Istanbul in July from $196

Return flights