Cheapest return flights from Istanbul to Sofia in April from $129

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 April 2025 (see full year).

Return flights

24 Apr - 27 Apr Turkish Airlines direct
04 Apr - 06 Apr Turkish Airlines direct
26 Apr - 28 Apr Turkish Airlines direct
09 Apr - 16 Apr Pegasus Airlines direct
11 Apr - 13 Apr Turkish Airlines direct
11 Apr - 15 Apr Turkish Airlines direct
08 Apr - 08 Apr Turkish Airlines direct
04 Apr - 13 Apr SKY express
04 Apr - 18 Apr SKY express
04 Apr - 20 Apr SKY express
20 Apr - 09 May SKY express
25 Apr - 09 May SKY express

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

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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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