| Rockford to Altus (Oklahoma) | 762.51 mi (1,227.14 km) |
| Rockford to Alum Rock (California) | 1,759.85 mi (2,832.20 km) |
| Rockford to Alvin (Texas) | 954.71 mi (1,536.46 km) |
| Rockford to Amarillo (Texas) | 842.08 mi (1,355.19 km) |
| Rockford to Amelia (Ohio) | 338.03 mi (544.00 km) |
| Rockford to American Canyon (California) | 1,762.39 mi (2,836.29 km) |
| Rockford to American Fork (Utah) | 1,183.16 mi (1,904.12 km) |
| Rockford to Americus (Georgia) | 752.18 mi (1,210.52 km) |
| Rockford to Ames (Iowa) | 234.03 mi (376.63 km) |
| Rockford to Amherst (Ohio) | 356.67 mi (574.00 km) |
| Rockford to Ammon (Idaho) | 1,158.68 mi (1,864.72 km) |
| Rockford to Amsterdam (New York) | 756.92 mi (1,218.14 km) |
| Rockford to Anacortes (Washington) | 1,670.26 mi (2,688.03 km) |
| Rockford to Anaheim (California) | 1,661.45 mi (2,673.85 km) |
| Rockford to Anchorage (Alaska) | 2,755.75 mi (4,434.95 km) |
