Cheapest return flights from Raleigh-durham to Porto in August from 616€

AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Porto (OPO) in August 2025 (see full year).

Return flights

13 Aug - 21 Aug Air Canada
13 Aug - 20 Aug Lufthansa
16 Aug - 23 Aug Frontier Airlines

Also check the deals for one-way flights from Raleigh-durham to Porto in August.

Skyscanner

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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