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

Return flights

27 Aug - 31 Aug	Aer Lingus
06 Aug - 10 Aug	Iberia
13 Aug - 25 Aug	Iberia
03 Aug - 10 Aug	Iberia
24 Aug - 30 Aug	SWISS
01 Aug - 05 Aug	Aer Lingus
05 Aug - 12 Aug	Aer Lingus
16 Aug - 29 Aug	Aer Lingus
21 Aug - 06 Sep	Aer Lingus
30 Aug - 06 Sep	Brussels Airlines
15 Aug - 29 Aug	British Airways
20 Aug - 31 Aug	SWISS
23 Aug - 13 Sep	SWISS
21 Aug - 06 Sep	TAP	direct
23 Aug - 13 Sep	Virgin Atlantic	direct

Also check the deals for one-way flights from Lisbon 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 Lisbon to New York in August from 438€

Return flights