| Portugalete to Caño Martin Peña (Puerto Rico) | 4,007.39 mi (6,449.26 km) |
| Portugalete to Cañon City (Colorado) | 4,986.76 mi (8,025.41 km) |
| Portugalete to Canóvanas (Puerto Rico) | 4,002.62 mi (6,441.60 km) |
| Portugalete to Canton (Georgia) | 4,257.66 mi (6,852.04 km) |
| Portugalete to Canton (Illinois) | 4,259.60 mi (6,855.16 km) |
| Portugalete to Canton (Mississippi) | 4,582.59 mi (7,374.97 km) |
| Portugalete to Canton (Ohio) | 3,867.39 mi (6,223.97 km) |
| Portugalete to Canyon (Texas) | 5,007.15 mi (8,058.23 km) |
| Portugalete to Canyon Lake (California) | 5,694.39 mi (9,164.23 km) |
| Portugalete to Canyon Lake (Texas) | 5,077.95 mi (8,172.17 km) |
| Portugalete to Cape Coral (Florida) | 4,449.94 mi (7,161.49 km) |
| Portugalete to Cape Girardeau (Missouri) | 4,367.17 mi (7,028.28 km) |
| Portugalete to Carbondale (Illinois) | 4,335.70 mi (6,977.64 km) |
| Portugalete to Carlisle (Pennsylvania) | 3,699.17 mi (5,953.24 km) |
| Portugalete to Carlsbad (California) | 5,724.17 mi (9,212.16 km) |
