| Portimao to Carlsbad (New Mexico) | 5,190.92 mi (8,353.97 km) |
| Portimao to Carmel (Indiana) | 4,058.62 mi (6,531.72 km) |
| Portimao to Carmichael (California) | 5,679.50 mi (9,140.28 km) |
| Portimao to Carney (Maryland) | 3,600.50 mi (5,794.45 km) |
| Portimao to Carnot-Moon (Pennsylvania) | 3,755.73 mi (6,044.26 km) |
| Portimao to Carol Stream (Illinois) | 4,097.49 mi (6,594.27 km) |
| Portimao to Carolina (Puerto Rico) | 3,682.31 mi (5,926.11 km) |
| Portimao to Carolina Forest (South Carolina) | 3,874.30 mi (6,235.08 km) |
| Portimao to Carpentersville (Illinois) | 4,099.13 mi (6,596.91 km) |
| Portimao to Carpinteria (California) | 5,799.58 mi (9,333.53 km) |
| Portimao to Carrboro (North Carolina) | 3,821.29 mi (6,149.77 km) |
| Portimao to Carroll (Iowa) | 4,404.06 mi (7,087.65 km) |
| Portimao to Carrollton (Georgia) | 4,198.14 mi (6,756.25 km) |
| Portimao to Carrollton (Texas) | 4,812.02 mi (7,744.20 km) |
| Portimao to Carrollwood (Florida) | 4,244.74 mi (6,831.25 km) |
