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

Return flights

06 Aug - 11 Aug	Delta
13 Aug - 19 Aug	United
03 Aug - 31 Aug	Scandinavian Airlines
10 Aug - 22 Aug	TAP	direct
06 Aug - 11 Aug	TAP	direct
05 Aug - 13 Aug	Delta
03 Aug - 24 Aug	TAP
01 Aug - 13 Aug	TAP	direct
07 Aug - 22 Aug	TAP	direct
07 Aug - 22 Aug	Lufthansa

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

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 August from $645

Return flights