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

AirHint found the following cheapest return flights from Istanbul (IST) to Sofia (SOF) in October 2025 (see full year).

Return flights

31 Oct - 04 Nov Pegasus Airlines direct
27 Oct - 01 Nov Pegasus Airlines direct
27 Oct - 28 Oct Pegasus Airlines direct
31 Oct - 16 Nov Pegasus Airlines direct
28 Oct - 04 Nov Pegasus Airlines direct
30 Oct - 04 Nov Pegasus Airlines
30 Oct - 03 Nov Pegasus Airlines
27 Oct - 27 Oct Pegasus Airlines direct
30 Oct - 03 Nov Pegasus Airlines direct
30 Oct - 04 Nov Pegasus Airlines direct
26 Oct - 01 Nov Pegasus Airlines
28 Oct - 31 Oct Pegasus Airlines direct
26 Oct - 28 Oct Fly One
27 Oct - 29 Oct Pegasus Airlines
26 Oct - 03 Nov Pegasus Airlines
27 Oct - 29 Oct Pegasus Airlines direct
27 Oct - 30 Oct Pegasus Airlines
28 Oct - 30 Oct Pegasus Airlines
25 Oct - 27 Oct AJet
25 Oct - 27 Oct Pegasus Airlines direct

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

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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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