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

Return flights

21 Mar - 29 Mar	Icelandair
21 Mar - 26 Mar	Icelandair
03 Mar - 17 Mar	United
04 Mar - 09 Mar	United	direct
10 Mar - 16 Mar	TAP	direct
20 Mar - 26 Mar	TAP	direct
03 Mar - 17 Mar	TAP	direct
11 Mar - 23 Mar	TAP	direct
20 Mar - 24 Mar	TAP	direct
13 Mar - 19 Mar	TAP	direct
25 Mar - 01 Apr	SWISS
17 Mar - 11 Apr	SWISS
28 Mar - 18 Apr	SWISS
30 Mar - 06 Apr	TAP
26 Mar - 04 Apr	Delta
25 Mar - 01 Apr	TAP	direct
25 Mar - 03 Apr	TAP	direct
30 Mar - 06 Apr	TAP	direct
27 Mar - 18 Apr	TAP	direct
28 Mar - 18 Apr	TAP	direct

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

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 March from 306€

Return flights