Cheapest return flights from Brussels to Sofia in September from 89€

Best time to book flights for Brussels (BRU) to Sofia (SOF) flights at AirHint

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

Return flights

05 Sep - 20 Sep Ryanair direct
12 Sep - 20 Sep Ryanair direct
07 Sep - 20 Sep Ryanair direct
05 Sep - 10 Sep Ryanair direct
12 Sep - 30 Sep Ryanair direct
07 Sep - 10 Sep Ryanair direct
26 Sep - 30 Sep Ryanair direct
27 Sep - 30 Sep Ryanair direct
05 Sep - 12 Sep Ryanair direct
03 Sep - 09 Sep Ryanair

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

Skyscanner

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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