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

Return flights

09 Jul - 26 Jul	Iberia
11 Jul - 26 Jul	Iberia
11 Jul - 25 Jul	Iberia
09 Jul - 25 Jul	Iberia
10 Jul - 25 Jul	KLM
10 Jul - 27 Jul	KLM
10 Jul - 26 Jul	KLM
11 Jul - 18 Jul	Iberia
22 Jul - 18 Aug	Air Transat
11 Jul - 21 Aug	Air Transat
21 Jul - 19 Aug	KLM

Also check the deals for one-way flights from Porto to Santiago 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 Porto to Santiago in July from $1146

Return flights