Cheapest return flights from Karlsruhe/Baden-Baden to Sofia in September from $59

AirHint found the following cheapest return flights from Karlsruhe/Baden-Baden (FKB) to Sofia (SOF) in September 2025 (see full year).

Return flights

30 Sep - 18 Oct Ryanair direct
23 Sep - 27 Sep Ryanair direct
23 Sep - 30 Sep Ryanair direct
30 Sep - 11 Oct Ryanair direct
23 Sep - 11 Oct Ryanair direct
26 Sep - 27 Sep Ryanair direct
26 Sep - 30 Sep Ryanair direct
12 Sep - 27 Sep Ryanair direct
26 Sep - 11 Oct Ryanair direct
12 Sep - 30 Sep Ryanair direct
06 Sep - 23 Sep Ryanair direct
12 Sep - 23 Sep Ryanair direct
09 Sep - 12 Sep Ryanair direct
06 Sep - 21 Sep Ryanair

Also check the deals for one-way flights from Karlsruhe/Baden-Baden to Sofia in September.

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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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