| San Juan to Cadillac (Michigan) | 2,108.22 mi (3,392.86 km) |
| San Juan to Caguas (Puerto Rico) | 11.60 mi (18.67 km) |
| San Juan to Cahokia (Illinois) | 2,009.36 mi (3,233.75 km) |
| San Juan to Calabasas (California) | 3,396.04 mi (5,465.41 km) |
| San Juan to Caldwell (Idaho) | 3,398.00 mi (5,468.56 km) |
| San Juan to Caledonia (Wisconsin) | 2,113.62 mi (3,401.55 km) |
| San Juan to Calera (Alabama) | 1,634.91 mi (2,631.13 km) |
| San Juan to Calexico (California) | 3,204.84 mi (5,157.70 km) |
| San Juan to Calhoun (Georgia) | 1,606.85 mi (2,585.97 km) |
| San Juan to California (Maryland) | 1,511.58 mi (2,432.65 km) |
| San Juan to California City (California) | 3,357.60 mi (5,403.53 km) |
| San Juan to Callaway (Florida) | 1,467.85 mi (2,362.27 km) |
| San Juan to Calumet City (Illinois) | 2,043.38 mi (3,288.51 km) |
| San Juan to Calverton (Maryland) | 1,569.51 mi (2,525.89 km) |
| San Juan to Camano (Washington) | 3,743.47 mi (6,024.53 km) |
