| Witham to Port Chester (New York) | 3,459.48 mi (5,567.50 km) |
| Witham to Port Hueneme (California) | 5,475.19 mi (8,811.47 km) |
| Witham to Port Huron (Michigan) | 3,718.73 mi (5,984.72 km) |
| Witham to Port Lavaca (Texas) | 4,980.05 mi (8,014.61 km) |
| Witham to Port Neches (Texas) | 4,803.58 mi (7,730.61 km) |
| Witham to Port Orange (Florida) | 4,322.84 mi (6,956.94 km) |
| Witham to Port Orchard (Washington) | 4,801.92 mi (7,727.95 km) |
| Witham to Port Royal (South Carolina) | 4,149.18 mi (6,677.46 km) |
| Witham to Port Salerno (Florida) | 4,387.07 mi (7,060.31 km) |
| Witham to Port St. John (Florida) | 4,346.09 mi (6,994.36 km) |
| Witham to Port St. Lucie (Florida) | 4,388.68 mi (7,062.89 km) |
| Witham to Port Washington (New York) | 3,467.60 mi (5,580.56 km) |
| Witham to Port Washington (Wisconsin) | 3,906.47 mi (6,286.85 km) |
| Witham to Port Wentworth (Georgia) | 4,177.48 mi (6,723.00 km) |
| Witham to Portage (Indiana) | 3,963.90 mi (6,379.29 km) |
