AirHint found the following cheapest return flights from New York (NYC) to Lisbon (LIS) in December 2025 (see full year).

Return flights

02 Dec - 09 Dec	TAP	direct
04 Dec - 08 Dec	Delta	direct
04 Dec - 07 Dec	Scandinavian Airlines
17 Dec - 12 Jan	Iberia For Level
24 Dec - 14 Jan	TAP	direct
04 Dec - 07 Dec	TAP	direct
30 Dec - 05 Jan	Lufthansa
12 Dec - 19 Dec	TAP	direct
30 Dec - 05 Jan	TAP	direct
24 Dec - 05 Jan	Iberia For Level
24 Dec - 05 Jan	TAP	direct
17 Dec - 12 Jan	TAP	direct
22 Dec - 31 Dec	TAP	direct
21 Dec - 28 Dec	Iberia For Level
19 Dec - 27 Dec	Iberia For Level
21 Dec - 28 Dec	TAP	direct
22 Dec - 29 Dec	TAP	direct
19 Dec - 01 Jan	TAP	direct
25 Dec - 04 Jan	Iberia For Level
26 Dec - 03 Jan	TAP	direct

Also check the deals for one-way flights from New York to Lisbon 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 New York to Lisbon in December from 357€

Return flights