Cheapest return flights from New York (LGA) to Porto (OPO), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
03 Sep 17 Sep Air Canada
09 Sep 16 Sep Porter Airlines (Canada) Ltd
14 Sep 21 Sep Air Transat
15 Sep 22 Sep Air Canada
09 Sep 13 Sep Porter Airlines (Canada) Ltd
21 Sep 28 Sep Air Transat
16 Sep 23 Sep Air Canada
24 Sep 09 Oct Porter Airlines (Canada) Ltd
17 Sep 24 Sep Air Canada
27 Sep 10 Oct Air Transat
28 Sep 05 Oct Air Canada
03 Sep 10 Sep Air Transat
08 Sep 15 Sep Air Canada
30 Sep 07 Oct Air Canada
14 Sep 02 Oct Air Canada
24 Sep 01 Oct Air Canada
29 Sep 13 Oct Air Canada
27 Sep 04 Oct Air Canada
22 Sep 07 Oct Air Canada
23 Sep 01 Oct Air Canada
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deals for one-way flights from New York to Porto in September.

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Updated Jul 15, 2026.

About these fares

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