Cheapest return flights from Istanbul to Sofia in August from 85€

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

Return flights

29 Aug - 31 Aug Pegasus Airlines direct
07 Aug - 14 Aug Pegasus Airlines direct
31 Aug - 02 Sep Pegasus Airlines direct
13 Aug - 14 Aug Pegasus Airlines direct
16 Aug - 18 Aug Pegasus Airlines direct
28 Aug - 31 Aug Pegasus Airlines direct
08 Aug - 28 Aug Pegasus Airlines direct
31 Aug - 07 Sep Pegasus Airlines direct
06 Aug - 07 Aug Pegasus Airlines direct
02 Aug - 07 Aug Pegasus Airlines direct
12 Aug - 14 Aug Pegasus Airlines direct
10 Aug - 21 Aug Pegasus Airlines direct
29 Aug - 05 Sep Pegasus Airlines direct
01 Aug - 14 Sep Pegasus Airlines direct
26 Aug - 02 Sep Pegasus Airlines direct
30 Aug - 01 Sep Pegasus Airlines direct
31 Aug - 19 Sep SKY express
24 Aug - 14 Sep SKY express
31 Aug - 14 Sep SKY express
31 Aug - 21 Sep SKY express

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

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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