Cheapest return flights from Istanbul to Sofia in May from $96

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

Return flights

25 May - 27 May Pegasus Airlines direct
13 May - 20 May Pegasus Airlines direct
16 May - 19 May Pegasus Airlines direct
10 May - 11 May Pegasus Airlines direct
26 May - 29 May Pegasus Airlines direct
08 May - 11 May Pegasus Airlines direct
14 May - 17 May Pegasus Airlines direct
18 May - 23 May Pegasus Airlines direct
11 May - 23 May Pegasus Airlines direct
26 May - 30 May Turkish Airlines direct
31 May - 05 Jun Pegasus Airlines direct
29 May - 07 Jun SKY express
24 May - 07 Jun SKY express
17 May - 07 Jun SKY express
29 May - 05 Jun SKY express
31 May - 07 Jun SKY express
24 May - 05 Jun SKY express
17 May - 05 Jun SKY express
31 May - 19 Jun SKY express
31 May - 21 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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