| Rock Island to Altus (Oklahoma) | 667.75 mi (1,074.64 km) |
| Rock Island to Alum Rock (California) | 1,682.00 mi (2,706.91 km) |
| Rock Island to Alvin (Texas) | 875.57 mi (1,409.10 km) |
| Rock Island to Amarillo (Texas) | 746.94 mi (1,202.09 km) |
| Rock Island to Amelia (Ohio) | 375.38 mi (604.12 km) |
| Rock Island to American Canyon (California) | 1,686.59 mi (2,714.30 km) |
| Rock Island to American Fork (Utah) | 1,107.20 mi (1,781.86 km) |
| Rock Island to Americus (Georgia) | 737.92 mi (1,187.56 km) |
| Rock Island to Ames (Iowa) | 161.29 mi (259.56 km) |
| Rock Island to Amherst (Ohio) | 432.50 mi (696.05 km) |
| Rock Island to Ammon (Idaho) | 1,095.00 mi (1,762.23 km) |
| Rock Island to Amsterdam (New York) | 843.72 mi (1,357.84 km) |
| Rock Island to Anacortes (Washington) | 1,625.96 mi (2,616.73 km) |
| Rock Island to Anaheim (California) | 1,574.46 mi (2,533.85 km) |
| Rock Island to Anchorage (Alaska) | 2,746.70 mi (4,420.38 km) |
