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

Return flights

11 May - 19 May	British Airways
02 May - 04 May	TAP
07 May - 11 May	United
19 May - 26 May	Delta
06 May - 13 May	Scandinavian Airlines
06 May - 14 May	TAP
02 May - 07 May	SWISS
05 May - 12 May	United
04 May - 11 May	United
03 May - 21 May	SWISS
25 May - 01 Jun	SWISS
26 May - 05 Jun	Lufthansa
22 May - 06 Jun	SWISS

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

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 Lisbon to Newark in May from $513

Return flights