AirHint found the following cheapest return flights from Clermont-Ferrand (CFE) to Porto (OPO) in December 2025 (see full year).

Return flights

14 Dec - 18 Dec	Ryanair	direct
14 Dec - 01 Jan	Ryanair	direct
07 Dec - 18 Dec	Ryanair	direct
05 Dec - 18 Dec	Ryanair	direct
18 Dec - 01 Jan	Ryanair	direct
19 Dec - 01 Jan	Ryanair	direct
14 Dec - 02 Jan	Ryanair	direct
07 Dec - 14 Dec	Ryanair	direct
07 Dec - 12 Dec	Ryanair	direct
14 Dec - 04 Jan	Ryanair	direct
28 Dec - 01 Jan	Ryanair	direct
05 Dec - 14 Dec	Ryanair	direct
05 Dec - 07 Dec	Ryanair	direct
05 Dec - 12 Dec	Ryanair	direct
18 Dec - 02 Jan	Ryanair	direct
18 Dec - 04 Jan	Ryanair	direct
28 Dec - 18 Jan	Ryanair	direct
19 Dec - 02 Jan	Ryanair	direct
26 Dec - 31 Dec	Ryanair

Also check the deals for one-way flights from Clermont-Ferrand 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 Clermont-Ferrand to Porto in December from $145

Return flights