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

Return flights

10 Dec - 31 Jan	TAP
30 Dec - 20 Jan	LATAM Airlines Group
02 Dec - 31 Dec	GOL Linhas Aéreas
08 Dec - 31 Dec	LATAM Airlines Group
05 Dec - 07 Dec	LATAM Airlines Group
03 Dec - 01 Jan	GOL Linhas Aéreas
05 Dec - 08 Dec	Azul Airlines
30 Dec - 15 Jan	LATAM Airlines Group
03 Dec - 31 Dec	Azul Airlines
30 Dec - 31 Jan	LATAM Airlines Group
23 Dec - 14 Jan	GOL Linhas Aéreas
15 Dec - 15 Jan	Azul Airlines
10 Dec - 31 Dec	TAP
15 Dec - 30 Dec	Azul Airlines
08 Dec - 23 Dec	LATAM Airlines Group
05 Dec - 22 Dec	GOL Linhas Aéreas
21 Dec - 30 Jan	Azul Airlines
15 Dec - 08 Jan	Azul Airlines
22 Dec - 06 Jan	LATAM Airlines Group
20 Dec - 30 Dec	Azul Airlines

Also check the deals for one-way flights from Fortaleza 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 Fortaleza to Porto in December from $871

Return flights