| Atlanta (Georgia) to Rockford | 638.88 mi (1,028.18 km) |
| Washington (District of Columbia) to Rockford | 672.62 mi (1,082.48 km) |
| Baltimore (Maryland) to Rockford | 681.82 mi (1,097.29 km) |
| Philadelphia (Pennsylvania) to Rockford | 740.52 mi (1,191.75 km) |
| Dallas (Texas) to Rockford | 777.62 mi (1,251.46 km) |
| Brooklyn (New York) to Rockford | 789.47 mi (1,270.53 km) |
| New York (New York) to Rockford | 790.05 mi (1,271.46 km) |
| Queens (New York) to Rockford | 795.71 mi (1,280.57 km) |
| Denver (Colorado) to Rockford | 840.93 mi (1,353.35 km) |
| Boston (Massachusetts) to Rockford | 917.23 mi (1,476.14 km) |
| Houston (Texas) to Rockford | 930.78 mi (1,497.95 km) |
| Tampa (Florida) to Rockford | 1,053.34 mi (1,695.18 km) |
| Chicago (Illinois) to Rockford | 76.45 mi (123.04 km) |
| Miami (Florida) to Rockford | 1,244.41 mi (2,002.68 km) |
| Phoenix (Arizona) to Rockford | 1,385.24 mi (2,229.33 km) |
| Las Vegas (Nevada) to Rockford | 1,455.90 mi (2,343.04 km) |
| Riverside (California) to Rockford | 1,634.93 mi (2,631.16 km) |
| Seattle (Washington) to Rockford | 1,654.73 mi (2,663.02 km) |
| San Diego (California) to Rockford | 1,659.65 mi (2,670.94 km) |
| Portland (Oregon) to Rockford | 1,674.95 mi (2,695.58 km) |
| Los Angeles (California) to Rockford | 1,679.98 mi (2,703.67 km) |
| San Francisco (California) to Rockford | 1,782.04 mi (2,867.92 km) |
| St. Louis (Missouri) to Rockford | 257.95 mi (415.13 km) |
| Minneapolis (Minnesota) to Rockford | 281.23 mi (452.59 km) |
| Detroit (Michigan) to Rockford | 304.61 mi (490.23 km) |
