AirHint found the following cheapest return flights from Lisbon (LIS) to Istanbul (IST) in July 2025 (see full year).

Return flights

16 Jul - 23 Jul	Ryanair
29 Jul - 31 Jul	Ryanair
23 Jul - 28 Jul	Ryanair
23 Jul - 27 Jul	Ryanair
25 Jul - 29 Jul	TAP
12 Jul - 15 Jul	Air Europa
21 Jul - 05 Aug	Pegasus Airlines
29 Jul - 01 Aug	Ryanair
18 Jul - 21 Jul	Ryanair
25 Jul - 27 Jul	TAP
21 Jul - 28 Jul	Wizz Air Malta
20 Jul - 25 Jul	Vueling Airlines
22 Jul - 05 Aug	Ryanair
25 Jul - 01 Aug	TAP
27 Jul - 01 Aug	Ryanair
22 Jul - 04 Aug	Wizz Air Malta
16 Jul - 09 Aug	LOT
17 Jul - 07 Aug	Wizz Air
16 Jul - 13 Aug	Pegasus Airlines
26 Jul - 03 Aug	Ryanair

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 $343

Return flights