| San Juan to Cloverleaf (Texas) | 1,990.13 mi (3,202.80 km) |
| San Juan to Cloverly (Maryland) | 1,573.75 mi (2,532.70 km) |
| San Juan to Clovis (California) | 3,470.74 mi (5,585.62 km) |
| San Juan to Clovis (New Mexico) | 2,531.54 mi (4,074.11 km) |
| San Juan to Clute (Texas) | 1,988.76 mi (3,200.59 km) |
| San Juan to Coachella (California) | 3,248.98 mi (5,228.73 km) |
| San Juan to Coalinga (California) | 3,501.36 mi (5,634.90 km) |
| San Juan to Coamo (Puerto Rico) | 29.83 mi (48.01 km) |
| San Juan to Coatesville (Pennsylvania) | 1,600.88 mi (2,576.36 km) |
| San Juan to Cockeysville (Maryland) | 1,587.74 mi (2,555.22 km) |
| San Juan to Cocoa (Florida) | 1,158.18 mi (1,863.92 km) |
| San Juan to Cocoa Beach (Florida) | 1,149.20 mi (1,849.46 km) |
| San Juan to Coconut Creek (Florida) | 1,052.94 mi (1,694.54 km) |
| San Juan to Coeur d'Alene (Idaho) | 3,481.23 mi (5,602.50 km) |
| San Juan to Cohoes (New York) | 1,742.59 mi (2,804.43 km) |
