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

Return flights

18 Jul - 25 Jul	Pegasus Airlines
27 Jul - 30 Aug	AJet
28 Jul - 03 Aug	AJet
27 Jul - 02 Aug	Pegasus Airlines
17 Jul - 23 Jul	AJet
15 Jul - 25 Jul	LOT
18 Jul - 21 Jul	Pegasus Airlines
18 Jul - 22 Jul	Pegasus Airlines
19 Jul - 25 Jul	Pegasus Airlines
11 Jul - 18 Jul	LOT
28 Jul - 04 Aug	Pegasus Airlines
21 Jul - 23 Jul	AJet
22 Jul - 29 Jul	AJet
18 Jul - 20 Jul	Pegasus Airlines
25 Jul - 03 Aug	AJet
31 Jul - 05 Aug	Wizz Air
25 Jul - 01 Aug	Pegasus Airlines
25 Jul - 02 Aug	Pegasus Airlines
26 Jul - 03 Aug	Wizz Air
26 Jul - 02 Aug	Pegasus Airlines

Also check the deals for one-way flights from Istanbul to Lisbon 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 Istanbul to Lisbon in July from $328

Return flights