| Rock Island to Port Charlotte (Florida) | 1,109.77 mi (1,786.01 km) |
| Rock Island to Port Chester (New York) | 878.02 mi (1,413.04 km) |
| Rock Island to Port Hueneme (California) | 1,633.04 mi (2,628.13 km) |
| Rock Island to Port Huron (Michigan) | 429.38 mi (691.01 km) |
| Rock Island to Port Lavaca (Texas) | 950.88 mi (1,530.30 km) |
| Rock Island to Port Neches (Texas) | 816.03 mi (1,313.27 km) |
| Rock Island to Port Orange (Florida) | 1,008.78 mi (1,623.48 km) |
| Rock Island to Port Orchard (Washington) | 1,622.58 mi (2,611.28 km) |
| Rock Island to Port Royal (South Carolina) | 832.16 mi (1,339.23 km) |
| Rock Island to Port Salerno (Florida) | 1,151.78 mi (1,853.61 km) |
| Rock Island to Port St. John (Florida) | 1,052.94 mi (1,694.55 km) |
| Rock Island to Port St. Lucie (Florida) | 1,137.90 mi (1,831.27 km) |
| Rock Island to Port Washington (New York) | 879.31 mi (1,415.12 km) |
| Rock Island to Port Washington (Wisconsin) | 190.83 mi (307.11 km) |
| Rock Island to Port Wentworth (Georgia) | 823.50 mi (1,325.29 km) |
