Cheapest return flights from Istanbul to Sofia in May from 85€

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

Return flights

17 May - 30 May Pegasus Airlines direct
05 May - 11 May Pegasus Airlines direct
01 May - 04 May Pegasus Airlines direct
29 May - 31 May Turkish Airlines direct
25 May - 30 May Pegasus Airlines direct
06 May - 10 May Turkish Airlines direct
01 May - 17 May SKY express
01 May - 10 May SKY express
29 May - 05 Jun SKY express
03 May - 17 May SKY express
03 May - 10 May SKY express
22 May - 05 Jun SKY express
17 May - 05 Jun SKY express

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

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