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

Return flights

30 Sep - 08 Oct	Ryanair
30 Sep - 07 Oct	Ryanair
30 Sep - 02 Oct	Ryanair
17 Sep - 01 Oct	Ryanair
17 Sep - 24 Sep	Ryanair
29 Sep - 08 Oct	Ryanair
26 Sep - 05 Oct	Ryanair
20 Sep - 24 Sep	Ryanair
27 Sep - 30 Sep	Ryanair
17 Sep - 21 Sep	Ryanair
02 Sep - 09 Sep	Ryanair
17 Sep - 25 Sep	Ryanair
06 Sep - 17 Sep	Ryanair
19 Sep - 21 Sep	Ryanair
10 Sep - 17 Sep	Ryanair
18 Sep - 01 Oct	Ryanair
10 Sep - 18 Sep	Ryanair
28 Sep - 05 Oct	Vueling Airlines

Also check the deals for one-way flights from Reus 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 Reus to Sofia in September from 139€

Return flights