AirHint found the following cheapest return flights from Newark (EWR) to Lisbon (LIS) in January 2026 (see full year).

Return flights

14 Jan - 22 Jan	Icelandair
17 Jan - 25 Jan	Icelandair
21 Jan - 29 Jan	Icelandair
17 Jan - 22 Jan	Icelandair
29 Jan - 06 Feb	Air Canada
19 Jan - 14 Feb	Air Canada
15 Jan - 30 Jan	TAP	direct
25 Jan - 02 Feb	Air Canada
25 Jan - 02 Feb	TAP	direct
28 Jan - 04 Feb	TAP	direct
21 Jan - 14 Feb	TAP	direct
17 Jan - 07 Feb	TAP	direct
20 Jan - 14 Feb	TAP	direct
15 Jan - 07 Feb	TAP	direct
16 Jan - 07 Feb	TAP	direct
15 Jan - 21 Jan	TAP	direct
16 Jan - 21 Jan	TAP	direct
20 Jan - 27 Jan	TAP	direct
16 Jan - 26 Jan	TAP	direct
23 Jan - 28 Jan	TAP	direct

Also check the deals for one-way flights from Newark to Lisbon in January.

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 Newark to Lisbon in January from $356

Return flights