| Portimao to Corinth (Mississippi) | 4,328.07 mi (6,965.36 km) |
| Portimao to Corinth (Texas) | 4,814.68 mi (7,748.48 km) |
| Portimao to Cornelius (North Carolina) | 3,925.89 mi (6,318.11 km) |
| Portimao to Cornelius (Oregon) | 5,425.34 mi (8,731.24 km) |
| Portimao to Corning (New York) | 3,563.07 mi (5,734.21 km) |
| Portimao to Corona (California) | 5,739.90 mi (9,237.48 km) |
| Portimao to Coronado (California) | 5,775.91 mi (9,295.44 km) |
| Portimao to Corpus Christi (Texas) | 5,032.19 mi (8,098.53 km) |
| Portimao to Corsicana (Texas) | 4,823.64 mi (7,762.90 km) |
| Portimao to Cortland (New York) | 3,510.68 mi (5,649.90 km) |
| Portimao to Corvallis (Oregon) | 5,477.73 mi (8,815.55 km) |
| Portimao to Coshocton (Ohio) | 3,841.97 mi (6,183.05 km) |
| Portimao to Costa Mesa (California) | 5,763.86 mi (9,276.04 km) |
| Portimao to Coto de Caza (California) | 5,752.77 mi (9,258.19 km) |
| Portimao to Cottage Grove (Minnesota) | 4,232.75 mi (6,811.96 km) |
