Cheapest return flights from New York to Porto in September from $567

Best time to book flights for New York (LGA) to Porto (OPO) flights at AirHint

AirHint found the following cheapest return flights from New York (LGA) to Porto (OPO) in September 2025 (see full year).

Return flights

30 Sep - 08 Oct American Airlines
04 Sep - 11 Sep Air Canada
24 Sep - 01 Oct Air Canada
27 Sep - 07 Oct American Airlines
25 Sep - 17 Oct American Airlines
11 Sep - 18 Sep Air Canada
12 Sep - 19 Sep Air Canada
17 Sep - 23 Sep American Airlines
17 Sep - 02 Oct Air Transat
05 Sep - 22 Sep American Airlines
23 Sep - 06 Oct American Airlines

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

Skyscanner

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.

Book a cheap hotel in Porto

Cheap car rent in Porto