| Potomac to Port Charlotte (Florida) | 877.82 mi (1,412.72 km) |
| Potomac to Port Chester (New York) | 231.81 mi (373.06 km) |
| Potomac to Port Hueneme (California) | 2,333.77 mi (3,755.83 km) |
| Potomac to Port Huron (Michigan) | 387.09 mi (622.96 km) |
| Potomac to Port Lavaca (Texas) | 1,322.38 mi (2,128.17 km) |
| Potomac to Port Neches (Texas) | 1,137.20 mi (1,830.14 km) |
| Potomac to Port Orange (Florida) | 718.28 mi (1,155.96 km) |
| Potomac to Port Orchard (Washington) | 2,326.15 mi (3,743.58 km) |
| Potomac to Port Royal (South Carolina) | 500.30 mi (805.16 km) |
| Potomac to Port Salerno (Florida) | 837.98 mi (1,348.61 km) |
| Potomac to Port St. John (Florida) | 757.00 mi (1,218.27 km) |
| Potomac to Port St. Lucie (Florida) | 831.40 mi (1,338.01 km) |
| Potomac to Port Washington (New York) | 224.55 mi (361.37 km) |
| Potomac to Port Washington (Wisconsin) | 631.84 mi (1,016.85 km) |
| Potomac to Port Wentworth (Georgia) | 521.95 mi (840.00 km) |
