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

Return flights

27 Jul - 18 Aug	Air France
06 Jul - 31 Jul	Delta
06 Jul - 25 Jul	Delta
07 Jul - 14 Jul	Air France
11 Jul - 19 Jul	Delta
15 Jul - 19 Jul	Norse Atlantic Airways
12 Jul - 27 Jul	Delta
10 Jul - 19 Jul	Delta
05 Jul - 14 Jul	KLM
27 Jul - 06 Aug	Air France
12 Jul - 28 Jul	Norse Atlantic Airways (UK)
12 Jul - 26 Jul	Delta
06 Jul - 03 Aug	FrenchBee
26 Jul - 01 Aug	Norse Atlantic Airways (UK)

Also check the deals for one-way flights from Los Angeles to Porto in July.

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 July from 667€

Return flights