| Alfter to Port Chester (New York) | 3,742.86 mi (6,023.55 km) |
| Alfter to Port Hueneme (California) | 5,720.80 mi (9,206.74 km) |
| Alfter to Port Huron (Michigan) | 3,996.24 mi (6,431.33 km) |
| Alfter to Port Lavaca (Texas) | 5,259.56 mi (8,464.45 km) |
| Alfter to Port Neches (Texas) | 5,083.97 mi (8,181.86 km) |
| Alfter to Port Orange (Florida) | 4,607.79 mi (7,415.53 km) |
| Alfter to Port Orchard (Washington) | 5,020.06 mi (8,079.00 km) |
| Alfter to Port Royal (South Carolina) | 4,433.76 mi (7,135.45 km) |
| Alfter to Port Salerno (Florida) | 4,671.96 mi (7,518.79 km) |
| Alfter to Port St. John (Florida) | 4,631.06 mi (7,452.98 km) |
| Alfter to Port St. Lucie (Florida) | 4,673.59 mi (7,521.41 km) |
| Alfter to Port Washington (New York) | 3,751.06 mi (6,036.75 km) |
| Alfter to Port Washington (Wisconsin) | 4,179.49 mi (6,726.23 km) |
| Alfter to Port Wentworth (Georgia) | 4,462.00 mi (7,180.90 km) |
| Alfter to Portage (Indiana) | 4,239.54 mi (6,822.88 km) |
