Cheapest return flights from Istanbul to Lisbon in September from $228

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

Return flights

22 Sep - 25 Sep AJet
30 Sep - 07 Oct Pegasus Airlines
29 Sep - 02 Oct Pegasus Airlines
30 Sep - 02 Oct Pegasus Airlines
29 Sep - 01 Oct Pegasus Airlines
30 Sep - 03 Oct Pegasus Airlines
27 Sep - 07 Oct Pegasus Airlines
29 Sep - 03 Oct Pegasus Airlines
26 Sep - 02 Oct Pegasus Airlines
28 Sep - 30 Sep Pegasus Airlines
24 Sep - 30 Sep Pegasus Airlines
26 Sep - 03 Oct Pegasus Airlines
24 Sep - 23 Oct Pegasus Airlines
26 Sep - 29 Sep Pegasus Airlines
20 Sep - 23 Sep AJet
22 Sep - 29 Sep Pegasus Airlines
20 Sep - 25 Sep AJet
17 Sep - 18 Sep Pegasus Airlines
23 Sep - 27 Sep AJet
21 Sep - 26 Sep Pegasus Airlines

Also check the deals for one-way flights from Istanbul to Lisbon in September.

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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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