Cheapest return flights from Istanbul to Sofia in April from 100€

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

Return flights

21 Apr - 25 Apr Pegasus Airlines direct
22 Apr - 26 Apr Pegasus Airlines direct
20 Apr - 26 Apr Pegasus Airlines direct
21 Apr - 23 Apr Pegasus Airlines direct
25 Apr - 26 Apr Pegasus Airlines direct
21 Apr - 26 Apr Pegasus Airlines direct
23 Apr - 26 Apr Pegasus Airlines direct
24 Apr - 26 Apr Pegasus Airlines direct
29 Apr - 03 May Pegasus Airlines direct
29 Apr - 04 May Pegasus Airlines direct
22 Apr - 25 Apr Pegasus Airlines direct
07 Apr - 12 Apr Pegasus Airlines direct
30 Apr - 03 May Pegasus Airlines direct
29 Apr - 02 May Pegasus Airlines direct
30 Apr - 02 May Pegasus Airlines direct
24 Apr - 10 May SKY express
26 Apr - 10 May SKY express
24 Apr - 03 May SKY express
26 Apr - 17 May SKY express
26 Apr - 03 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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