Cheapest return flights from New York to Lisbon in September from $579

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

Return flights

24 Sep - 01 Oct United
22 Sep - 07 Oct Lufthansa
23 Sep - 30 Sep Air Canada
30 Sep - 28 Oct British Airways
10 Sep - 17 Sep United
23 Sep - 28 Sep British Airways
09 Sep - 16 Sep British Airways
08 Sep - 15 Sep British Airways
04 Sep - 09 Sep British Airways
04 Sep - 20 Sep British Airways
18 Sep - 04 Oct British Airways
24 Sep - 28 Sep British Airways
15 Sep - 21 Sep British Airways
14 Sep - 21 Sep British Airways
30 Sep - 07 Oct United

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

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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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