AirHint found the following cheapest return flights from New York (NYC) to Lisbon (LIS) in December 2026 (see full year).

Return flights

01 Dec - 08 Dec	Air Europa
01 Dec - 08 Dec	Air France	direct
26 Dec - 25 Jan	TAP	direct
15 Dec - 15 Dec	TAP
14 Dec - 14 Dec	TAP
16 Dec - 16 Dec	TAP
15 Dec - 15 Dec	TAP	direct
14 Dec - 14 Dec	TAP	direct
16 Dec - 16 Dec	TAP	direct
18 Dec - 02 Jan	United
30 Dec - 13 Jan	Finnair

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 360€

Return flights