| Seaham to Port Chester (New York) | 3,320.70 mi (5,344.16 km) |
| Seaham to Port Hueneme (California) | 5,273.69 mi (8,487.19 km) |
| Seaham to Port Huron (Michigan) | 3,558.05 mi (5,726.13 km) |
| Seaham to Port Lavaca (Texas) | 4,824.00 mi (7,763.48 km) |
| Seaham to Port Neches (Texas) | 4,650.42 mi (7,484.13 km) |
| Seaham to Port Orange (Florida) | 4,200.71 mi (6,760.39 km) |
| Seaham to Port Orchard (Washington) | 4,586.11 mi (7,380.63 km) |
| Seaham to Port Royal (South Carolina) | 4,019.52 mi (6,468.79 km) |
| Seaham to Port Salerno (Florida) | 4,271.93 mi (6,875.01 km) |
| Seaham to Port St. John (Florida) | 4,226.05 mi (6,801.17 km) |
| Seaham to Port St. Lucie (Florida) | 4,272.69 mi (6,876.24 km) |
| Seaham to Port Washington (New York) | 3,329.36 mi (5,358.09 km) |
| Seaham to Port Washington (Wisconsin) | 3,735.93 mi (6,012.40 km) |
| Seaham to Port Wentworth (Georgia) | 4,047.09 mi (6,513.15 km) |
| Seaham to Portage (Indiana) | 3,798.64 mi (6,113.32 km) |
