| San Juan to Cordele (Georgia) | 1,446.47 mi (2,327.86 km) |
| San Juan to Corinth (Mississippi) | 1,789.00 mi (2,879.12 km) |
| San Juan to Corinth (Texas) | 2,169.64 mi (3,491.70 km) |
| San Juan to Cornelius (North Carolina) | 1,487.65 mi (2,394.14 km) |
| San Juan to Cornelius (Oregon) | 3,732.94 mi (6,007.58 km) |
| San Juan to Corning (New York) | 1,763.51 mi (2,838.10 km) |
| San Juan to Corona (California) | 3,331.40 mi (5,361.37 km) |
| San Juan to Coronado (California) | 3,301.27 mi (5,312.89 km) |
| San Juan to Corpus Christi (Texas) | 2,085.52 mi (3,356.32 km) |
| San Juan to Corsicana (Texas) | 2,111.93 mi (3,398.82 km) |
| San Juan to Cortland (New York) | 1,774.16 mi (2,855.24 km) |
| San Juan to Corvallis (Oregon) | 3,732.36 mi (6,006.65 km) |
| San Juan to Coshocton (Ohio) | 1,778.57 mi (2,862.33 km) |
| San Juan to Costa Mesa (California) | 3,350.19 mi (5,391.60 km) |
| San Juan to Coto de Caza (California) | 3,331.00 mi (5,360.73 km) |
