| Duffel to Port Chester (New York) | 3,632.90 mi (5,846.58 km) |
| Duffel to Port Hueneme (California) | 5,628.13 mi (9,057.60 km) |
| Duffel to Port Huron (Michigan) | 3,889.30 mi (6,259.22 km) |
| Duffel to Port Lavaca (Texas) | 5,151.69 mi (8,290.84 km) |
| Duffel to Port Neches (Texas) | 4,975.65 mi (8,007.53 km) |
| Duffel to Port Orange (Florida) | 4,496.63 mi (7,236.62 km) |
| Duffel to Port Orchard (Washington) | 4,938.76 mi (7,948.16 km) |
| Duffel to Port Royal (South Carolina) | 4,323.00 mi (6,957.19 km) |
| Duffel to Port Salerno (Florida) | 4,560.58 mi (7,339.55 km) |
| Duffel to Port St. John (Florida) | 4,519.82 mi (7,273.94 km) |
| Duffel to Port St. Lucie (Florida) | 4,562.23 mi (7,342.20 km) |
| Duffel to Port Washington (New York) | 3,641.05 mi (5,859.71 km) |
| Duffel to Port Washington (Wisconsin) | 4,074.65 mi (6,557.51 km) |
| Duffel to Port Wentworth (Georgia) | 4,351.28 mi (7,002.72 km) |
| Duffel to Portage (Indiana) | 4,133.50 mi (6,652.22 km) |
