Cheapest return flights from Istanbul to Barcelona in September from 131€

Best time to book flights for Istanbul (IST) to Barcelona (BCN) flights at AirHint

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

Return flights

15 Sep - 23 Sep Vueling Airlines direct
04 Sep - 15 Sep Vueling Airlines direct
08 Sep - 15 Sep Pegasus Airlines
17 Sep - 23 Sep Pegasus Airlines
20 Sep - 24 Sep Vueling Airlines direct
03 Sep - 10 Sep Pegasus Airlines
16 Sep - 20 Sep Pegasus Airlines
23 Sep - 27 Sep Pegasus Airlines
26 Sep - 01 Oct Pegasus Airlines
16 Sep - 20 Sep Vueling Airlines direct
23 Sep - 27 Sep Vueling Airlines direct
29 Sep - 03 Oct Pegasus Airlines
29 Sep - 03 Oct Vueling Airlines direct
23 Sep - 08 Oct Vueling Airlines direct
26 Sep - 08 Oct Vueling Airlines direct
29 Sep - 08 Oct Vueling Airlines direct
19 Sep - 08 Oct Vueling Airlines direct
26 Sep - 01 Oct Vueling Airlines direct
27 Sep - 08 Oct Vueling Airlines direct
30 Sep - 08 Oct Vueling Airlines direct

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