AirHint found the following cheapest return flights from Krakow (KRK) to Porto (OPO) in December 2025 (see full year).

Return flights

29 Dec - 31 Dec	LOT
31 Dec - 01 Jan	Ryanair	direct
29 Dec - 30 Dec	LOT
28 Dec - 31 Dec	Ryanair
30 Dec - 06 Jan	SWISS
31 Dec - 14 Jan	Ryanair	direct
31 Dec - 11 Jan	Ryanair	direct
30 Dec - 01 Jan	Ryanair
31 Dec - 05 Jan	Ryanair
31 Dec - 02 Jan	Ryanair	direct
31 Dec - 09 Jan	Ryanair	direct
31 Dec - 08 Jan	Ryanair	direct
29 Dec - 01 Jan	KLM
28 Dec - 29 Dec	KLM
27 Dec - 29 Dec	Ryanair
27 Dec - 31 Dec	Ryanair
29 Dec - 31 Dec	Ryanair	direct
28 Dec - 29 Dec	Ryanair	direct
28 Dec - 31 Dec	Ryanair	direct

Also check the deals for one-way flights from Krakow 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 Krakow to Porto in December from 179€

Return flights