| Boulder to Felida (Washington) | 964.85 mi (1,552.78 km) |
| Boulder to Fenton (Michigan) | 1,129.19 mi (1,817.25 km) |
| Boulder to Fergus Falls (Minnesota) | 632.51 mi (1,017.92 km) |
| Boulder to Ferguson (Missouri) | 802.62 mi (1,291.70 km) |
| Boulder to Fernandina Beach (Florida) | 1,483.12 mi (2,386.84 km) |
| Boulder to Ferndale (Maryland) | 1,518.02 mi (2,443.02 km) |
| Boulder to Ferndale (Michigan) | 1,158.13 mi (1,863.84 km) |
| Boulder to Ferndale (Washington) | 1,046.50 mi (1,684.18 km) |
| Boulder to Fernley (Nevada) | 739.89 mi (1,190.73 km) |
| Boulder to Ferry Pass (Florida) | 1,208.51 mi (1,944.91 km) |
| Boulder to Festus (Missouri) | 804.35 mi (1,294.48 km) |
| Boulder to Fife (Washington) | 986.49 mi (1,587.60 km) |
| Boulder to Fillmore (California) | 845.15 mi (1,360.14 km) |
| Boulder to Findlay (Ohio) | 1,134.28 mi (1,825.45 km) |
| Boulder to Finneytown (Ohio) | 1,102.63 mi (1,774.52 km) |
