AirHint found the following cheapest return flights from Karlsruhe/Baden-Baden (FKB) to Porto (OPO) in December 2025 (see full year).

Return flights

05 Dec - 11 Dec	Ryanair	direct
05 Dec - 08 Dec	Ryanair	direct
06 Dec - 11 Dec	Ryanair	direct
05 Dec - 14 Dec	Ryanair	direct
07 Dec - 08 Dec	Ryanair	direct
06 Dec - 12 Dec	Ryanair	direct
05 Dec - 19 Dec	Ryanair	direct
12 Dec - 16 Jan	Ryanair	direct
05 Dec - 07 Dec	Ryanair	direct
06 Dec - 08 Dec	Ryanair	direct
07 Dec - 14 Dec	Ryanair	direct
30 Dec - 16 Jan	Ryanair	direct
30 Dec - 09 Jan	Ryanair
15 Dec - 01 Jan	Ryanair	direct
30 Dec - 01 Jan	Ryanair	direct
30 Dec - 09 Jan	Ryanair	direct
14 Dec - 06 Jan	Ryanair
30 Dec - 07 Jan	Ryanair
13 Dec - 06 Jan	Ryanair
30 Dec - 06 Jan	Ryanair

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

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 Porto in December from 69€

Return flights