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Based on ratings and reviews from real users on KAYAK, the best car rental companies in Viana do Castelo are Dollar (7.4, 29664 reviews), Thrifty (7.3, 16979 reviews), and Europcar (6.8, 2114 reviews).
Car rental companies onsite at Porto Airport include Sixt, Centauro, Avis, SADORENT and Alamo.
Car rental companies that offer shuttle or pick-up services from Porto Airport to off-airport locations include Europcar, Sixt, Budget, Avis, SADORENT, INTERRENT, Ace, Guerin, Rhodium and Alamo.
Take a look at our extensive car rental location map to find the best rental cars near you.