Cheapest return flights from Istanbul to Barcelona in September from $143

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

Return flights

30 Sep - 02 Oct Pegasus Airlines
30 Sep - 07 Oct Pegasus Airlines
29 Sep - 02 Oct Pegasus Airlines
30 Sep - 03 Oct Pegasus Airlines
30 Sep - 04 Oct Pegasus Airlines
29 Sep - 24 Oct Pegasus Airlines
30 Sep - 10 Oct Pegasus Airlines
23 Sep - 06 Oct AJet
23 Sep - 25 Sep Pegasus Airlines
29 Sep - 03 Oct Pegasus Airlines
23 Sep - 24 Sep Pegasus Airlines
23 Sep - 28 Sep Pegasus Airlines
27 Sep - 30 Sep Pegasus Airlines
26 Sep - 03 Oct Pegasus Airlines
24 Sep - 30 Sep Pegasus Airlines
23 Sep - 30 Sep Pegasus Airlines
25 Sep - 29 Sep Pegasus Airlines
25 Sep - 26 Sep Pegasus Airlines
26 Sep - 28 Sep Pegasus Airlines
27 Sep - 28 Sep Pegasus Airlines

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

Skyscanner

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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