Cheapest return flights from Istanbul to Sofia in May from 152€

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

Return flights

22 May - 31 May Air Serbia
02 May - 08 May Air Serbia
29 May - 05 Jun Air Serbia
03 May - 08 May SKY express
29 May - 31 May SKY express
24 May - 31 May SKY express
24 May - 05 Jun SKY express
29 May - 05 Jun Turkish Airlines direct
02 May - 08 May Turkish Airlines direct
22 May - 31 May Turkish Airlines direct
22 May - 05 Jun SKY express

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

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