Cheapest return flights from Istanbul to Sofia in December from 84€

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

Return flights

01 Dec - 04 Dec Pegasus Airlines direct
23 Dec - 27 Dec Pegasus Airlines direct
12 Dec - 15 Dec Pegasus Airlines direct
28 Dec - 03 Jan Pegasus Airlines direct
27 Dec - 03 Jan Pegasus Airlines direct
29 Dec - 03 Jan Pegasus Airlines direct
05 Dec - 08 Dec Pegasus Airlines direct
26 Dec - 30 Dec Pegasus Airlines direct
22 Dec - 09 Jan Pegasus Airlines direct
12 Dec - 14 Dec Pegasus Airlines direct
21 Dec - 28 Dec Pegasus Airlines direct
06 Dec - 13 Dec Pegasus Airlines direct
20 Dec - 21 Dec Pegasus Airlines direct
04 Dec - 07 Dec Pegasus Airlines direct
31 Dec - 04 Jan Turkish Airlines direct
31 Dec - 02 Jan Turkish Airlines direct
26 Dec - 04 Jan SKY express
28 Dec - 04 Jan SKY express
26 Dec - 02 Jan SKY express
28 Dec - 02 Jan SKY express

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

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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