| Seaham to Caño Martin Peña (Puerto Rico) | 4,182.71 mi (6,731.42 km) |
| Seaham to Cañon City (Colorado) | 4,588.88 mi (7,385.08 km) |
| Seaham to Canóvanas (Puerto Rico) | 4,180.25 mi (6,727.46 km) |
| Seaham to Canton (Georgia) | 4,068.09 mi (6,546.96 km) |
| Seaham to Canton (Illinois) | 3,952.84 mi (6,361.49 km) |
| Seaham to Canton (Mississippi) | 4,363.86 mi (7,022.95 km) |
| Seaham to Canton (Ohio) | 3,622.37 mi (5,829.64 km) |
| Seaham to Canyon (Texas) | 4,665.83 mi (7,508.93 km) |
| Seaham to Canyon Lake (California) | 5,242.56 mi (8,437.08 km) |
| Seaham to Canyon Lake (Texas) | 4,815.23 mi (7,749.37 km) |
| Seaham to Cape Coral (Florida) | 4,369.70 mi (7,032.35 km) |
| Seaham to Cape Girardeau (Missouri) | 4,100.76 mi (6,599.53 km) |
| Seaham to Carbondale (Illinois) | 4,067.33 mi (6,545.74 km) |
| Seaham to Carlisle (Pennsylvania) | 3,494.14 mi (5,623.28 km) |
| Seaham to Carlsbad (California) | 5,276.17 mi (8,491.17 km) |
