| Rockford to Federal Way (Washington) | 1,655.19 mi (2,663.76 km) |
| Rockford to Felida (Washington) | 1,676.98 mi (2,698.83 km) |
| Rockford to Fenton (Michigan) | 274.88 mi (442.37 km) |
| Rockford to Fergus Falls (Minnesota) | 444.34 mi (715.10 km) |
| Rockford to Ferguson (Missouri) | 251.02 mi (403.98 km) |
| Rockford to Fernandina Beach (Florida) | 905.49 mi (1,457.25 km) |
| Rockford to Ferndale (Maryland) | 683.92 mi (1,100.66 km) |
| Rockford to Ferndale (Michigan) | 303.15 mi (487.87 km) |
| Rockford to Ferndale (Washington) | 1,669.62 mi (2,687.00 km) |
| Rockford to Fernley (Nevada) | 1,575.78 mi (2,535.97 km) |
| Rockford to Ferry Pass (Florida) | 817.70 mi (1,315.96 km) |
| Rockford to Festus (Missouri) | 288.02 mi (463.52 km) |
| Rockford to Fife (Washington) | 1,655.96 mi (2,665.01 km) |
| Rockford to Fillmore (California) | 1,696.54 mi (2,730.32 km) |
| Rockford to Findlay (Ohio) | 292.33 mi (470.45 km) |
