Cheapest return flights from Sofia to Istanbul in December from $89

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

Return flights

17 Dec - 18 Dec Pegasus Airlines direct
19 Dec - 29 Dec Pegasus Airlines direct
19 Dec - 22 Dec Pegasus Airlines direct
13 Dec - 20 Dec Pegasus Airlines direct
13 Dec - 16 Dec Pegasus Airlines direct
13 Dec - 17 Dec Pegasus Airlines direct
06 Dec - 09 Dec Pegasus Airlines direct
10 Dec - 14 Dec Pegasus Airlines direct
03 Dec - 06 Dec Pegasus Airlines direct
05 Dec - 08 Dec Pegasus Airlines direct
15 Dec - 15 Jan Pegasus Airlines direct
23 Dec - 09 Jan Pegasus Airlines direct
26 Dec - 06 Jan Pegasus Airlines direct
17 Dec - 06 Jan Pegasus Airlines direct
26 Dec - 04 Jan Pegasus Airlines direct
31 Dec - 04 Jan Pegasus Airlines direct
19 Dec - 05 Jan Pegasus Airlines
18 Dec - 04 Jan Pegasus Airlines direct
30 Dec - 04 Jan Pegasus Airlines direct
24 Dec - 04 Jan Pegasus Airlines direct

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

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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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