| Seaham to Centralia (Illinois) | 4,022.83 mi (6,474.12 km) |
| Seaham to Centralia (Washington) | 4,640.23 mi (7,467.72 km) |
| Seaham to Centreville (Virginia) | 3,568.62 mi (5,743.14 km) |
| Seaham to Ceres (California) | 5,122.77 mi (8,244.30 km) |
| Seaham to Cerritos (California) | 5,256.71 mi (8,459.85 km) |
| Seaham to Chalco (Nebraska) | 4,136.07 mi (6,656.37 km) |
| Seaham to Chalmette (Louisiana) | 4,502.30 mi (7,245.75 km) |
| Seaham to Chambersburg (Pennsylvania) | 3,524.24 mi (5,671.72 km) |
| Seaham to Chamblee (Georgia) | 4,079.53 mi (6,565.37 km) |
| Seaham to Champaign (Illinois) | 3,911.47 mi (6,294.91 km) |
| Seaham to Champlin (Minnesota) | 3,840.07 mi (6,180.00 km) |
| Seaham to Chandler (Arizona) | 5,095.08 mi (8,199.75 km) |
| Seaham to Chanhassen (Minnesota) | 3,861.57 mi (6,214.59 km) |
| Seaham to Channahon (Illinois) | 3,845.84 mi (6,189.28 km) |
| Seaham to Channelview (Texas) | 4,703.94 mi (7,570.26 km) |
