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

Return flights

08 Dec - 12 Dec	Ryanair	direct
12 Dec - 26 Dec	Ryanair	direct
01 Dec - 12 Dec	Ryanair	direct
08 Dec - 26 Dec	Ryanair	direct
01 Dec - 05 Dec	Ryanair	direct
15 Dec - 26 Dec	Ryanair	direct
15 Dec - 02 Jan	Ryanair	direct
16 Dec - 22 Dec	Ryanair
13 Dec - 09 Jan	easyJet
16 Dec - 22 Dec	Lufthansa	direct
01 Dec - 20 Dec	Lufthansa	direct
03 Dec - 13 Dec	Lufthansa	direct
13 Dec - 08 Jan	Ryanair
31 Dec - 02 Jan	Ryanair
13 Dec - 08 Jan	Lufthansa	direct
30 Dec - 02 Jan	Ryanair
13 Dec - 03 Jan	Lufthansa	direct
28 Dec - 02 Jan	Ryanair
19 Dec - 02 Jan	Ryanair	direct
29 Dec - 03 Jan	Lufthansa	direct

Also check the deals for one-way flights from Frankfurt 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 Frankfurt to Porto in December from 110€

Return flights