| Kempston to Port Chester (New York) | 3,406.78 mi (5,482.68 km) |
| Kempston to Port Hueneme (California) | 5,424.86 mi (8,730.47 km) |
| Kempston to Port Huron (Michigan) | 3,665.73 mi (5,899.42 km) |
| Kempston to Port Lavaca (Texas) | 4,927.05 mi (7,929.31 km) |
| Kempston to Port Neches (Texas) | 4,750.60 mi (7,645.35 km) |
| Kempston to Port Orange (Florida) | 4,270.94 mi (6,873.41 km) |
| Kempston to Port Orchard (Washington) | 4,755.22 mi (7,652.78 km) |
| Kempston to Port Royal (South Carolina) | 4,096.87 mi (6,593.28 km) |
| Kempston to Port Salerno (Florida) | 4,335.60 mi (6,977.48 km) |
| Kempston to Port St. John (Florida) | 4,294.31 mi (6,911.03 km) |
| Kempston to Port St. Lucie (Florida) | 4,337.15 mi (6,979.97 km) |
| Kempston to Port Washington (New York) | 3,414.92 mi (5,495.78 km) |
| Kempston to Port Washington (Wisconsin) | 3,853.63 mi (6,201.82 km) |
| Kempston to Port Wentworth (Georgia) | 4,125.14 mi (6,638.77 km) |
| Kempston to Portage (Indiana) | 3,910.95 mi (6,294.07 km) |
