AirHint found the following cheapest return flights from Valencia (VLC) to Sofia (SOF) in September 2025 (see full year).

Return flights

17 Sep - 01 Oct	Wizz Air
24 Sep - 01 Oct	Wizz Air Malta
24 Sep - 30 Sep	Wizz Air Malta
21 Sep - 02 Oct	Wizz Air
28 Sep - 01 Oct	Wizz Air
07 Sep - 17 Sep	Wizz Air
28 Sep - 30 Sep	Wizz Air
07 Sep - 24 Sep	Wizz Air
17 Sep - 24 Sep	Wizz Air
20 Sep - 01 Oct	Wizz Air Malta
14 Sep - 20 Sep	Ryanair
18 Sep - 24 Sep	Ryanair
28 Sep - 05 Oct	Wizz Air
28 Sep - 19 Oct	Wizz Air	direct
24 Sep - 27 Sep	Wizz Air
21 Sep - 25 Sep	Wizz Air
04 Sep - 15 Sep	Ryanair
28 Sep - 06 Oct	Wizz Air
28 Sep - 02 Oct	Wizz Air
30 Sep - 02 Oct	Volotea

Also check the deals for one-way flights from Valencia to Sofia in September.

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 Valencia to Sofia in September from $90

Return flights