Cheapest return flights from Istanbul to Sofia in January from $99

AirHint found the following cheapest return flights from Istanbul (IST) to Sofia (SOF) in January 2026 (see full year).

Return flights

09 Jan - 16 Jan Pegasus Airlines direct
08 Jan - 11 Jan Pegasus Airlines direct
14 Jan - 12 Feb Pegasus Airlines direct
15 Jan - 18 Jan Pegasus Airlines direct
20 Jan - 18 Feb Pegasus Airlines direct
01 Jan - 04 Jan Pegasus Airlines direct
17 Jan - 22 Jan Pegasus Airlines
19 Jan - 23 Jan Pegasus Airlines direct
17 Jan - 22 Jan Pegasus Airlines direct
21 Jan - 22 Jan Pegasus Airlines direct
23 Jan - 25 Jan Pegasus Airlines direct
24 Jan - 28 Jan Turkish Airlines direct
28 Jan - 01 Feb Turkish Airlines direct
25 Jan - 13 Feb SKY express
25 Jan - 06 Feb SKY express
25 Jan - 15 Feb SKY express
30 Jan - 13 Feb SKY express
30 Jan - 15 Feb SKY express

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

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