| Rock Island to Federal Way (Washington) | 1,606.66 mi (2,585.68 km) |
| Rock Island to Felida (Washington) | 1,622.91 mi (2,611.82 km) |
| Rock Island to Fenton (Michigan) | 363.59 mi (585.14 km) |
| Rock Island to Fergus Falls (Minnesota) | 430.53 mi (692.87 km) |
| Rock Island to Ferguson (Missouri) | 188.61 mi (303.54 km) |
| Rock Island to Fernandina Beach (Florida) | 903.37 mi (1,453.83 km) |
| Rock Island to Ferndale (Maryland) | 750.61 mi (1,208.00 km) |
| Rock Island to Ferndale (Michigan) | 388.73 mi (625.61 km) |
| Rock Island to Ferndale (Washington) | 1,626.66 mi (2,617.86 km) |
| Rock Island to Fernley (Nevada) | 1,501.56 mi (2,416.53 km) |
| Rock Island to Ferry Pass (Florida) | 779.76 mi (1,254.90 km) |
| Rock Island to Festus (Missouri) | 224.78 mi (361.74 km) |
| Rock Island to Fife (Washington) | 1,607.16 mi (2,586.48 km) |
| Rock Island to Fillmore (California) | 1,611.14 mi (2,592.88 km) |
| Rock Island to Findlay (Ohio) | 361.80 mi (582.26 km) |
