| Boppard to Port Chester (New York) | 3,780.25 mi (6,083.72 km) |
| Boppard to Port Hueneme (California) | 5,763.79 mi (9,275.93 km) |
| Boppard to Port Huron (Michigan) | 4,035.96 mi (6,495.25 km) |
| Boppard to Port Lavaca (Texas) | 5,298.74 mi (8,527.50 km) |
| Boppard to Port Neches (Texas) | 5,122.84 mi (8,244.42 km) |
| Boppard to Port Orange (Florida) | 4,643.03 mi (7,472.24 km) |
| Boppard to Port Orchard (Washington) | 5,063.19 mi (8,148.42 km) |
| Boppard to Port Royal (South Carolina) | 4,469.96 mi (7,193.71 km) |
| Boppard to Port Salerno (Florida) | 4,706.29 mi (7,574.04 km) |
| Boppard to Port St. John (Florida) | 4,666.03 mi (7,509.25 km) |
| Boppard to Port St. Lucie (Florida) | 4,708.02 mi (7,576.83 km) |
| Boppard to Port Washington (New York) | 3,788.39 mi (6,096.82 km) |
| Boppard to Port Washington (Wisconsin) | 4,220.16 mi (6,791.69 km) |
| Boppard to Port Wentworth (Georgia) | 4,498.29 mi (7,239.30 km) |
| Boppard to Portage (Indiana) | 4,279.71 mi (6,887.52 km) |
