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

Return flights

30 Oct - 06 Nov	Norse Atlantic Airways
05 Oct - 12 Oct	Norse Atlantic Airways (UK)
29 Oct - 05 Nov	Air Canada
28 Oct - 04 Nov	TAP
18 Oct - 01 Nov	TAP
26 Oct - 10 Nov	SWISS
31 Oct - 07 Nov	Norse Atlantic Airways

Also check the deals for one-way flights from Los Angeles to Porto 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 Los Angeles to Porto in October from 409€

Return flights