| Ashton to Port Chester (New York) | 3,315.64 mi (5,336.01 km) |
| Ashton to Port Hueneme (California) | 5,311.87 mi (8,548.62 km) |
| Ashton to Port Huron (Michigan) | 3,566.05 mi (5,739.00 km) |
| Ashton to Port Lavaca (Texas) | 4,829.46 mi (7,772.27 km) |
| Ashton to Port Neches (Texas) | 4,654.10 mi (7,490.05 km) |
| Ashton to Port Orange (Florida) | 4,187.03 mi (6,738.38 km) |
| Ashton to Port Orchard (Washington) | 4,639.27 mi (7,466.19 km) |
| Ashton to Port Royal (South Carolina) | 4,009.74 mi (6,453.05 km) |
| Ashton to Port Salerno (Florida) | 4,254.71 mi (6,847.30 km) |
| Ashton to Port St. John (Florida) | 4,211.30 mi (6,777.44 km) |
| Ashton to Port St. Lucie (Florida) | 4,255.90 mi (6,849.21 km) |
| Ashton to Port Washington (New York) | 3,324.00 mi (5,349.46 km) |
| Ashton to Port Washington (Wisconsin) | 3,750.36 mi (6,035.61 km) |
| Ashton to Port Wentworth (Georgia) | 4,037.71 mi (6,498.06 km) |
| Ashton to Portage (Indiana) | 3,809.62 mi (6,130.99 km) |
