Cheapest return NYC–OPO flights, September

AirHint found the following cheapest return flights from New York (NYC) to Porto (OPO) in September 2026 (see full year).

Return flights

29 Sep - 13 Oct Norse Atlantic Airways
29 Sep - 05 Oct LEVEL
27 Sep - 10 Oct LEVEL
13 Sep - 16 Oct Turkish Airlines
10 Sep - 09 Oct Turkish Airlines
09 Sep - 13 Sep Iberia
17 Sep - 21 Sep Air Europa
13 Sep - 18 Sep FrenchBee
13 Sep - 16 Oct Air France direct
01 Sep - 08 Sep United direct
29 Sep - 13 Oct Air France direct
29 Sep - 06 Oct Air France direct
13 Sep - 19 Sep FrenchBee
02 Sep - 07 Sep Iberia
05 Sep - 13 Sep Scandinavian Airlines
24 Sep - 27 Sep Iberia
27 Sep - 10 Oct Delta direct
29 Sep - 05 Oct Delta direct
09 Sep - 13 Sep United direct
05 Sep - 15 Sep Delta

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

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