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

Return flights

03 May - 09 May	Scandinavian Airlines
10 May - 16 May	Scandinavian Airlines
02 May - 08 May	Scandinavian Airlines
22 May - 25 May	Scandinavian Airlines
19 May - 26 May	Lufthansa
01 May - 08 May	SWISS
01 May - 07 May	SWISS
05 May - 11 May	Lufthansa
27 May - 01 Jun	SWISS
01 May - 06 May	SWISS
13 May - 19 May	Scandinavian Airlines
27 May - 01 Jun	United	direct

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

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.

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Cheapest return flights from Porto to Newark in May from 340€

Return flights