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

Return flights

06 Aug - 31 Aug	Air Europa
27 Aug - 10 Sep	Air Canada
27 Aug - 08 Sep	Air Canada
11 Aug - 05 Sep	Iberia
19 Aug - 25 Aug	Iberia
26 Aug - 02 Sep	Brussels Airlines
22 Aug - 12 Sep	Air France
06 Aug - 13 Aug	Delta
29 Aug - 05 Sep	American Airlines
01 Aug - 11 Aug	Iberia
05 Aug - 14 Aug	Iberia
06 Aug - 11 Aug	Iberia
29 Aug - 06 Sep	Air France	direct
29 Aug - 05 Sep	Air France	direct
30 Aug - 06 Sep	Air France	direct
06 Aug - 22 Aug	KLM
06 Aug - 29 Aug	KLM
18 Aug - 24 Aug	Air Canada
19 Aug - 25 Aug	Air France	direct
27 Aug - 08 Sep	TAP	direct

Also check the deals for one-way flights from New York to Lisbon 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 New York to Lisbon in August from $422

Return flights