| Romeoville to Port Charlotte (Florida) | 1,066.92 mi (1,717.04 km) |
| Romeoville to Port Chester (New York) | 749.27 mi (1,205.84 km) |
| Romeoville to Port Hueneme (California) | 1,761.77 mi (2,835.29 km) |
| Romeoville to Port Huron (Michigan) | 303.86 mi (489.02 km) |
| Romeoville to Port Lavaca (Texas) | 1,018.88 mi (1,639.73 km) |
| Romeoville to Port Neches (Texas) | 868.82 mi (1,398.23 km) |
| Romeoville to Port Orange (Florida) | 952.06 mi (1,532.19 km) |
| Romeoville to Port Orchard (Washington) | 1,733.54 mi (2,789.87 km) |
| Romeoville to Port Royal (South Carolina) | 759.16 mi (1,221.75 km) |
| Romeoville to Port Salerno (Florida) | 1,096.56 mi (1,764.74 km) |
| Romeoville to Port St. John (Florida) | 997.16 mi (1,604.77 km) |
| Romeoville to Port St. Lucie (Florida) | 1,083.43 mi (1,743.61 km) |
| Romeoville to Port Washington (New York) | 750.66 mi (1,208.07 km) |
| Romeoville to Port Washington (Wisconsin) | 121.60 mi (195.69 km) |
| Romeoville to Port Wentworth (Georgia) | 754.65 mi (1,214.49 km) |
