Cheapest return flights from Istanbul to Sofia in September from 80€

AirHint found the following cheapest return flights from Istanbul (SAW) to Sofia (SOF) in September 2025 (see full year).

Return flights

21 Sep - 28 Sep Pegasus Airlines direct
04 Sep - 18 Sep Pegasus Airlines direct
24 Sep - 28 Sep Pegasus Airlines direct
16 Sep - 23 Sep Pegasus Airlines direct
22 Sep - 24 Sep Pegasus Airlines direct
05 Sep - 09 Sep Pegasus Airlines direct
03 Sep - 04 Sep Pegasus Airlines direct
15 Sep - 27 Sep Pegasus Airlines direct
26 Sep - 28 Sep Pegasus Airlines direct
11 Sep - 18 Sep Pegasus Airlines direct
02 Sep - 14 Oct Pegasus Airlines direct
29 Sep - 06 Oct Pegasus Airlines direct
29 Sep - 01 Oct Pegasus Airlines direct

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