| Rockford to Enterprise (Nevada) | 1,460.52 mi (2,350.48 km) |
| Rockford to Enumclaw (Washington) | 1,638.98 mi (2,637.68 km) |
| Rockford to Ephrata (Pennsylvania) | 684.04 mi (1,100.85 km) |
| Rockford to Erie (Colorado) | 843.88 mi (1,358.09 km) |
| Rockford to Erie (Pennsylvania) | 460.16 mi (740.56 km) |
| Rockford to Erlanger (Kentucky) | 324.72 mi (522.59 km) |
| Rockford to Escanaba (Michigan) | 260.18 mi (418.73 km) |
| Rockford to Escondido (California) | 1,646.38 mi (2,649.60 km) |
| Rockford to Española (New Mexico) | 1,006.22 mi (1,619.35 km) |
| Rockford to Essex (Maryland) | 690.34 mi (1,110.99 km) |
| Rockford to Essex Junction (Vermont) | 814.35 mi (1,310.56 km) |
| Rockford to Estelle (Louisiana) | 859.72 mi (1,383.59 km) |
| Rockford to Estero (Florida) | 1,168.69 mi (1,880.82 km) |
| Rockford to Euclid (Ohio) | 390.49 mi (628.43 km) |
| Rockford to Eufaula (Alabama) | 746.67 mi (1,201.64 km) |
