AirHint found the following cheapest return flights from Porto (OPO) to Newark (EWR) in October 2025 (see full year).

Return flights

02 Oct - 06 Oct	easyJet
07 Oct - 11 Oct	easyJet
14 Oct - 19 Oct	easyJet
02 Oct - 07 Nov	easyJet
10 Oct - 11 Oct	easyJet
13 Oct - 19 Oct	easyJet
01 Oct - 15 Oct	Transavia France
08 Oct - 12 Oct	Transavia France
01 Oct - 05 Oct	Transavia France
04 Oct - 12 Oct	Transavia France
07 Oct - 15 Oct	easyJet
31 Oct - 08 Nov	easyJet
30 Oct - 08 Nov	TAP	direct
28 Oct - 06 Nov	TAP	direct
30 Oct - 02 Nov	SWISS
31 Oct - 05 Nov	SWISS
27 Oct - 05 Nov	SWISS
29 Oct - 02 Nov	SWISS
20 Oct - 14 Nov	Lufthansa
26 Oct - 04 Nov	Lufthansa

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

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 October from $420

Return flights