AirHint found the following cheapest return flights from Lisbon (LIS) to Newark (EWR) in June 2025 (see full year).

Return flights

21 Jun - 23 Jun	SWISS
12 Jun - 15 Jun	United
19 Jun - 23 Jun	Lufthansa
20 Jun - 23 Jun	Lufthansa
18 Jun - 15 Jul	Delta
16 Jun - 14 Jul	Delta
14 Jun - 20 Jun	United
20 Jun - 22 Jun	Lufthansa
20 Jun - 24 Jun	SWISS
12 Jun - 22 Jun	Air Canada
11 Jun - 23 Jun	Delta
10 Jun - 19 Jul	Delta
16 Jun - 24 Jun	Lufthansa
20 Jun - 07 Jul	SWISS
25 Jun - 08 Jul	Transavia France
19 Jun - 09 Jul	SWISS
28 Jun - 05 Jul	SWISS
18 Jun - 15 Jul	TAP	direct
27 Jun - 05 Jul	Delta
24 Jun - 03 Jul	Lufthansa

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

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 June from $521

Return flights