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

Return flights

20 Oct - 07 Nov	Pegasus Airlines
23 Oct - 27 Oct	AJet
29 Oct - 01 Nov	Air Serbia
23 Oct - 25 Oct	AJet
29 Oct - 05 Nov	AJet
23 Oct - 31 Oct	AJet
30 Oct - 09 Nov	Air Serbia
21 Oct - 29 Oct	Pegasus Airlines
20 Oct - 30 Nov	easyJet
23 Oct - 30 Oct	AJet
25 Oct - 01 Nov	Condor
19 Oct - 24 Oct	Pegasus Airlines
26 Oct - 27 Oct	Air Serbia
27 Oct - 28 Oct	Air Serbia
29 Oct - 31 Oct	Air Serbia
31 Oct - 03 Nov	Air Serbia
31 Oct - 09 Nov	Air Serbia
22 Oct - 30 Oct	Air Serbia
20 Oct - 30 Nov	SWISS	direct

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

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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Cheapest return flights from Zurich to Sofia in October from 160€

Return flights