| San Juan to Clarksdale (Mississippi) | 1,860.97 mi (2,994.95 km) |
| San Juan to Clarkston (Georgia) | 1,546.29 mi (2,488.51 km) |
| San Juan to Clarksville (Indiana) | 1,816.59 mi (2,923.52 km) |
| San Juan to Clarksville (Tennessee) | 1,802.06 mi (2,900.13 km) |
| San Juan to Clawson (Michigan) | 1,945.18 mi (3,130.47 km) |
| San Juan to Clay (Alabama) | 1,650.43 mi (2,656.12 km) |
| San Juan to Clayton (California) | 3,601.49 mi (5,796.04 km) |
| San Juan to Clayton (Missouri) | 2,019.17 mi (3,249.54 km) |
| San Juan to Clayton (North Carolina) | 1,412.56 mi (2,273.29 km) |
| San Juan to Clayton (Ohio) | 1,840.12 mi (2,961.38 km) |
| San Juan to Clearfield (Utah) | 3,123.66 mi (5,027.05 km) |
| San Juan to Clearlake (California) | 3,646.50 mi (5,868.48 km) |
| San Juan to Clearwater (Florida) | 1,248.19 mi (2,008.78 km) |
| San Juan to Cleburne (Texas) | 2,170.53 mi (3,493.13 km) |
| San Juan to Clemmons (North Carolina) | 1,499.08 mi (2,412.54 km) |
