Cheapest return flights from Istanbul to Sofia in May from $103

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 May 2025 (see full year).

Return flights

16 May - 19 May Pegasus Airlines direct
19 May - 22 May Turkish Airlines direct
03 May - 10 May Turkish Airlines direct
28 May - 30 May Pegasus Airlines direct
21 May - 25 May Turkish Airlines direct
16 May - 25 May SKY express
02 May - 09 May SKY express
23 May - 25 May SKY express
16 May - 18 May SKY express
16 May - 30 May SKY express
16 May - 01 Jun SKY express
23 May - 01 Jun SKY express

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

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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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