Cheapest return flights from Istanbul to Sofia in August from $141

Best time to book flights for Istanbul (IST) to Sofia (SOF) flights at AirHint

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

Return flights

01 Aug - 03 Sep Pegasus Airlines direct
05 Aug - 06 Aug Pegasus Airlines direct
23 Aug - 26 Aug Aegean Airlines
05 Aug - 07 Aug Pegasus Airlines direct
01 Aug - 23 Aug Pegasus Airlines direct
19 Aug - 24 Aug Pegasus Airlines direct
10 Aug - 21 Aug Pegasus Airlines direct
23 Aug - 26 Aug Turkish Airlines direct
25 Aug - 31 Aug Pegasus Airlines direct
12 Aug - 20 Aug Air Serbia
04 Aug - 17 Aug Aegean Airlines
03 Aug - 09 Sep Aegean Airlines
03 Aug - 09 Sep Turkish Airlines direct

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

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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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