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

Return flights

30 Dec - 18 Jan	Ryanair	direct
30 Dec - 16 Jan	Ryanair	direct
30 Dec - 19 Jan	Ryanair	direct
29 Dec - 18 Jan	Ryanair	direct
29 Dec - 16 Jan	Ryanair	direct
28 Dec - 16 Jan	Ryanair	direct
29 Dec - 19 Jan	Ryanair	direct
30 Dec - 07 Jan	Ryanair
30 Dec - 12 Jan	Ryanair	direct
30 Dec - 30 Dec	Ryanair	direct
29 Dec - 30 Dec	Ryanair	direct
31 Dec - 07 Jan	Ryanair
28 Dec - 29 Dec	Ryanair	direct
28 Dec - 30 Dec	Ryanair	direct
28 Dec - 31 Dec	Ryanair
27 Dec - 29 Dec	Ryanair
27 Dec - 30 Dec	Wizz Air Malta
27 Dec - 31 Dec	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 191€

Return flights