| Portimao to Clarkston (Georgia) | 4,147.74 mi (6,675.14 km) |
| Portimao to Clarksville (Indiana) | 4,087.71 mi (6,578.53 km) |
| Portimao to Clarksville (Tennessee) | 4,218.26 mi (6,788.64 km) |
| Portimao to Clawson (Michigan) | 3,846.11 mi (6,189.72 km) |
| Portimao to Clay (Alabama) | 4,272.31 mi (6,875.62 km) |
| Portimao to Clayton (California) | 5,735.88 mi (9,231.00 km) |
| Portimao to Clayton (Missouri) | 4,299.75 mi (6,919.78 km) |
| Portimao to Clayton (North Carolina) | 3,796.06 mi (6,109.16 km) |
| Portimao to Clayton (Ohio) | 3,973.37 mi (6,394.51 km) |
| Portimao to Clearfield (Utah) | 5,190.23 mi (8,352.86 km) |
| Portimao to Clearlake (California) | 5,716.16 mi (9,199.27 km) |
| Portimao to Clearwater (Florida) | 4,260.57 mi (6,856.72 km) |
| Portimao to Cleburne (Texas) | 4,860.58 mi (7,822.34 km) |
| Portimao to Clemmons (North Carolina) | 3,884.56 mi (6,251.60 km) |
| Portimao to Clemson (South Carolina) | 4,047.89 mi (6,514.46 km) |
