Cheapest return flights from New York to Lisbon in August from $431

Best time to book flights for New York (NYC) to Lisbon (LIS) flights at AirHint

AirHint found the following cheapest return flights from New York (NYC) to Lisbon (LIS) in August 2025 (see full year).

Return flights

13 Aug - 24 Aug Icelandair
13 Aug - 27 Aug British Airways
06 Aug - 14 Aug Iberia
27 Aug - 07 Sep Icelandair
13 Aug - 28 Aug Iberia
20 Aug - 02 Sep Iberia
20 Aug - 27 Aug Iberia
23 Aug - 28 Aug Icelandair
05 Aug - 12 Aug Air Canada
13 Aug - 19 Aug British Airways
13 Aug - 02 Sep British Airways
11 Aug - 20 Aug British Airways
12 Aug - 28 Aug British Airways
27 Aug - 03 Sep Iberia
25 Aug - 06 Sep Iberia
24 Aug - 01 Sep Air Canada
23 Aug - 03 Sep British Airways
26 Aug - 01 Sep Air Canada
28 Aug - 12 Sep British Airways
23 Aug - 06 Sep Icelandair

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

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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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