Cheapest return NYC–OPO flights, May

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

Return flights

18 May - 26 May Air Canada
18 May - 25 May Air Canada
25 May - 28 May Air Canada
17 May - 26 May Porter Airlines (Canada) Ltd
20 May - 26 May Air Canada
28 May - 03 Jun Air Canada
15 May - 23 May Norse Atlantic Airways
31 May - 13 Jun Air Transat
25 May - 01 Jun Air Transat
28 May - 01 Jun FrenchBee
27 May - 31 May Air France direct
26 May - 09 Jun Air France direct
28 May - 03 Jun Air France direct
31 May - 13 Jun Air France direct
25 May - 01 Jun Air France direct
13 May - 19 May SWISS
17 May - 23 May Azores Airlines
22 May - 27 May Norse Atlantic Airways
20 May - 07 Jun Air Canada
20 May - 14 Jun Air Canada

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

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