AirHint found the following cheapest return flights from Porto (OPO) to New York (JFK) in August 2025 (see full year).

Return flights

27 Aug - 08 Sep	SWISS
27 Aug - 03 Sep	SWISS
26 Aug - 02 Sep	SWISS
26 Aug - 03 Sep	SWISS
26 Aug - 09 Sep	SWISS
28 Aug - 12 Sep	SWISS
27 Aug - 13 Sep	SWISS
28 Aug - 07 Sep	SWISS
28 Aug - 09 Sep	SWISS
29 Aug - 01 Sep	British Airways
28 Aug - 31 Aug	British Airways
24 Aug - 31 Aug	British Airways
26 Aug - 31 Aug	British Airways
25 Aug - 31 Aug	Brussels Airlines
07 Aug - 11 Aug	Delta
21 Aug - 28 Aug	Brussels Airlines
07 Aug - 10 Aug	Delta
23 Aug - 31 Aug	British Airways
08 Aug - 17 Aug	British Airways
08 Aug - 24 Aug	British Airways

Also check the deals for one-way flights from Porto to New York 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 Porto to New York in August from 456€

Return flights