| Portimao to Caño Martin Peña (Puerto Rico) | 3,685.28 mi (5,930.89 km) |
| Portimao to Cañon City (Colorado) | 5,000.97 mi (8,048.29 km) |
| Portimao to Canóvanas (Puerto Rico) | 3,679.37 mi (5,921.38 km) |
| Portimao to Canton (Georgia) | 4,146.91 mi (6,673.81 km) |
| Portimao to Canton (Illinois) | 4,227.03 mi (6,802.75 km) |
| Portimao to Canton (Mississippi) | 4,482.43 mi (7,213.78 km) |
| Portimao to Canton (Ohio) | 3,804.45 mi (6,122.67 km) |
| Portimao to Canyon (Texas) | 4,980.24 mi (8,014.92 km) |
| Portimao to Canyon Lake (California) | 5,734.46 mi (9,228.72 km) |
| Portimao to Canyon Lake (Texas) | 4,995.28 mi (8,039.12 km) |
| Portimao to Cape Coral (Florida) | 4,265.17 mi (6,864.12 km) |
| Portimao to Cape Girardeau (Missouri) | 4,304.28 mi (6,927.07 km) |
| Portimao to Carbondale (Illinois) | 4,274.96 mi (6,879.89 km) |
| Portimao to Carlisle (Pennsylvania) | 3,615.20 mi (5,818.10 km) |
| Portimao to Carlsbad (California) | 5,760.70 mi (9,270.95 km) |
