Cheapest return flights from New York to Porto in September from $785

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

05 Sep - 25 Sep Air Transat
10 Sep - 17 Sep Air Canada
07 Sep - 12 Sep Air Transat
11 Sep - 18 Sep Air Transat
02 Sep - 16 Sep American Airlines
12 Sep - 19 Sep American Airlines
05 Sep - 13 Sep Air Transat
06 Sep - 14 Sep American Airlines
11 Sep - 21 Sep American Airlines
11 Sep - 22 Sep Air Transat

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