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

Return flights

04 Dec - 08 Dec	KLM
05 Dec - 08 Dec	KLM
03 Dec - 08 Dec	KLM
02 Dec - 08 Dec	KLM
07 Dec - 11 Jan	KLM
06 Dec - 09 Dec	Air France
06 Dec - 08 Dec	Delta
03 Dec - 09 Dec	KLM
05 Dec - 09 Dec	KLM
04 Dec - 09 Dec	KLM
02 Dec - 09 Dec	KLM
17 Dec - 11 Jan	Delta
16 Dec - 06 Jan	KLM
22 Dec - 07 Jan	Iberia
23 Dec - 01 Jan	British Airways
17 Dec - 06 Jan	Lufthansa
27 Dec - 10 Jan	Lufthansa
20 Dec - 04 Jan	British Airways
27 Dec - 11 Jan	Lufthansa
31 Dec - 10 Jan	Lufthansa

Also check the deals for one-way flights from Porto to New York 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 Porto to New York in December from $489

Return flights