AirHint found the following cheapest return flights from Porto (OPO) to Newark (EWR) in July 2025 (see full year).

Return flights

22 Jul - 29 Jul	KLM
26 Jul - 29 Jul	United	direct
29 Jul - 06 Aug	United
24 Jul - 27 Jul	Delta
26 Jul - 02 Aug	United	direct
26 Jul - 30 Jul	United
23 Jul - 28 Jul	Air Transat
22 Jul - 28 Jul	Delta
23 Jul - 26 Jul	Delta
24 Jul - 30 Jul	Delta
31 Jul - 10 Aug	SWISS
24 Jul - 28 Jul	United
24 Jul - 31 Jul	United
31 Jul - 22 Aug	United	direct
29 Jul - 05 Aug	United	direct
28 Jul - 02 Aug	United	direct
25 Jul - 01 Aug	United	direct
30 Jul - 10 Aug	Turkish Airlines
24 Jul - 29 Aug	Lufthansa
31 Jul - 04 Aug	Brussels Airlines	direct

Also check the deals for one-way flights from Porto to Newark in July.

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 Porto to Newark in July from 561€

Return flights