| Williamstown to Port Charlotte (Florida) | 968.20 mi (1,558.17 km) |
| Williamstown to Port Chester (New York) | 114.24 mi (183.86 km) |
| Williamstown to Port Hueneme (California) | 2,447.46 mi (3,938.81 km) |
| Williamstown to Port Huron (Michigan) | 448.76 mi (722.21 km) |
| Williamstown to Port Lavaca (Texas) | 1,449.15 mi (2,332.18 km) |
| Williamstown to Port Neches (Texas) | 1,263.75 mi (2,033.80 km) |
| Williamstown to Port Orange (Florida) | 807.34 mi (1,299.29 km) |
| Williamstown to Port Orchard (Washington) | 2,406.51 mi (3,872.91 km) |
| Williamstown to Port Royal (South Carolina) | 598.79 mi (963.66 km) |
| Williamstown to Port Salerno (Florida) | 916.69 mi (1,475.26 km) |
| Williamstown to Port St. John (Florida) | 842.96 mi (1,356.62 km) |
| Williamstown to Port St. Lucie (Florida) | 911.72 mi (1,467.28 km) |
| Williamstown to Port Washington (New York) | 104.46 mi (168.11 km) |
| Williamstown to Port Washington (Wisconsin) | 713.80 mi (1,148.75 km) |
| Williamstown to Port Wentworth (Georgia) | 623.36 mi (1,003.20 km) |
