| Rockford to Port Charlotte (Florida) | 1,125.45 mi (1,811.24 km) |
| Rockford to Port Chester (New York) | 798.68 mi (1,285.36 km) |
| Rockford to Port Hueneme (California) | 1,718.63 mi (2,765.86 km) |
| Rockford to Port Huron (Michigan) | 340.43 mi (547.86 km) |
| Rockford to Port Lavaca (Texas) | 1,033.16 mi (1,662.71 km) |
| Rockford to Port Neches (Texas) | 890.92 mi (1,433.80 km) |
| Rockford to Port Orange (Florida) | 1,013.59 mi (1,631.21 km) |
| Rockford to Port Orchard (Washington) | 1,670.38 mi (2,688.21 km) |
| Rockford to Port Royal (South Carolina) | 823.29 mi (1,324.96 km) |
| Rockford to Port Salerno (Florida) | 1,157.92 mi (1,863.50 km) |
| Rockford to Port St. John (Florida) | 1,058.54 mi (1,703.56 km) |
| Rockford to Port St. Lucie (Florida) | 1,144.63 mi (1,842.10 km) |
| Rockford to Port Washington (New York) | 800.76 mi (1,288.69 km) |
| Rockford to Port Washington (Wisconsin) | 98.02 mi (157.75 km) |
| Rockford to Port Wentworth (Georgia) | 818.14 mi (1,316.68 km) |
