Cheapest return flights from Istanbul to Sofia in May from 89€

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

Return flights

08 May - 11 May Pegasus Airlines direct
09 May - 13 May Turkish Airlines direct
21 May - 24 May Turkish Airlines direct
23 May - 30 May Turkish Airlines direct
01 May - 03 May Turkish Airlines direct
23 May - 29 May Turkish Airlines direct
18 May - 11 Jun Turkish Airlines direct
27 May - 29 May Turkish Airlines direct
25 May - 28 May Turkish Airlines direct
01 May - 05 May Pegasus Airlines direct
28 May - 31 May Turkish Airlines direct
27 May - 03 Jun Pegasus Airlines direct
31 May - 05 Jun Pegasus Airlines direct
25 May - 01 Jun Pegasus Airlines direct
17 May - 07 Jun SKY express
24 May - 07 Jun SKY express
31 May - 07 Jun SKY express
24 May - 12 Jun SKY express
31 May - 12 Jun SKY express

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

Powered by

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.

Book a cheap hotel in Sofia

Cheap car rent in Sofia

Feel free to contact us with any feedback or request another flight research.