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

Return flights

11 Oct - 27 Oct	Ryanair	direct
10 Oct - 27 Oct	Ryanair	direct
11 Oct - 25 Oct	Ryanair	direct
10 Oct - 25 Oct	Ryanair	direct
03 Oct - 07 Oct	Ryanair	direct
11 Oct - 18 Oct	Ryanair	direct
21 Oct - 27 Oct	Ryanair	direct
10 Oct - 18 Oct	Ryanair	direct
03 Oct - 18 Oct	Ryanair	direct
24 Oct - 27 Oct	Ryanair	direct
21 Oct - 08 Nov	Ryanair	direct
24 Oct - 08 Nov	Ryanair	direct
27 Oct - 08 Nov	Ryanair	direct
24 Oct - 13 Nov	Ryanair	direct
27 Oct - 13 Nov	Ryanair	direct

Also check the deals for one-way flights from Karlsruhe/Baden-Baden 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 Karlsruhe/Baden-Baden to Sofia in October from 45€

Return flights