| Seaham to Crest Hill (Illinois) | 3,833.02 mi (6,168.65 km) |
| Seaham to Crestview (Florida) | 4,330.32 mi (6,968.98 km) |
| Seaham to Crestwood (Illinois) | 3,815.95 mi (6,141.19 km) |
| Seaham to Crestwood (Missouri) | 4,066.84 mi (6,544.95 km) |
| Seaham to Creve Coeur (Missouri) | 4,063.82 mi (6,540.09 km) |
| Seaham to Crofton (Maryland) | 3,531.00 mi (5,682.60 km) |
| Seaham to Crossville (Tennessee) | 4,001.27 mi (6,439.43 km) |
| Seaham to Crowley (Louisiana) | 4,578.64 mi (7,368.60 km) |
| Seaham to Crowley (Texas) | 4,635.28 mi (7,459.76 km) |
| Seaham to Crown Point (Indiana) | 3,813.10 mi (6,136.60 km) |
| Seaham to Crystal (Minnesota) | 3,845.60 mi (6,188.89 km) |
| Seaham to Crystal Lake (Illinois) | 3,808.39 mi (6,129.01 km) |
| Seaham to Cudahy (California) | 5,254.60 mi (8,456.46 km) |
| Seaham to Cudahy (Wisconsin) | 3,756.52 mi (6,045.53 km) |
| Seaham to Cullman (Alabama) | 4,160.95 mi (6,696.41 km) |
