| San Marino to Port Charlotte (Florida) | 2,185.89 mi (3,517.85 km) |
| San Marino to Port Chester (New York) | 2,453.12 mi (3,947.91 km) |
| San Marino to Port Hueneme (California) | 62.41 mi (100.44 km) |
| San Marino to Port Huron (Michigan) | 2,005.33 mi (3,227.27 km) |
| San Marino to Port Lavaca (Texas) | 1,320.38 mi (2,124.95 km) |
| San Marino to Port Neches (Texas) | 1,440.41 mi (2,318.12 km) |
| San Marino to Port Orange (Florida) | 2,198.07 mi (3,537.45 km) |
| San Marino to Port Orchard (Washington) | 955.05 mi (1,537.00 km) |
| San Marino to Port Royal (South Carolina) | 2,153.30 mi (3,465.40 km) |
| San Marino to Port Salerno (Florida) | 2,291.93 mi (3,688.50 km) |
| San Marino to Port St. John (Florida) | 2,224.05 mi (3,579.27 km) |
| San Marino to Port St. Lucie (Florida) | 2,277.17 mi (3,664.75 km) |
| San Marino to Port Washington (New York) | 2,453.45 mi (3,948.45 km) |
| San Marino to Port Washington (Wisconsin) | 1,738.07 mi (2,797.16 km) |
| San Marino to Port Wentworth (Georgia) | 2,127.77 mi (3,424.31 km) |
