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

Return flights

31 Oct - 10 Nov	Delta
22 Oct - 11 Nov	Delta
29 Oct - 04 Nov	SWISS
29 Oct - 08 Nov	SWISS
22 Oct - 03 Nov	Delta
30 Oct - 04 Nov	United	direct
28 Oct - 03 Nov	KLM
30 Oct - 06 Nov	SWISS
22 Oct - 27 Oct	KLM
23 Oct - 29 Oct	Delta
23 Oct - 26 Oct	United	direct
23 Oct - 29 Oct	United	direct
23 Oct - 02 Nov	United	direct
30 Oct - 02 Nov	Brussels Airlines	direct
22 Oct - 26 Oct	KLM
30 Oct - 31 Oct	Brussels Airlines	direct
24 Oct - 26 Oct	KLM
24 Oct - 27 Oct	Delta
29 Oct - 31 Oct	United	direct
22 Oct - 29 Oct	United	direct

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.

Book a cheap hotel in Newark

Cheap car rent in Newark

Cheapest return flights from Porto to Newark in October from 485€

Return flights