| Sleaford to Fortuna Foothills (Arizona) | 5,319.92 mi (8,561.59 km) |
| Sleaford to Foster City (California) | 5,279.48 mi (8,496.51 km) |
| Sleaford to Fostoria (Ohio) | 3,764.94 mi (6,059.09 km) |
| Sleaford to Fountain (Colorado) | 4,660.76 mi (7,500.77 km) |
| Sleaford to Fountain Hills (Arizona) | 5,178.33 mi (8,333.71 km) |
| Sleaford to Fountain Inn (South Carolina) | 4,028.96 mi (6,483.99 km) |
| Sleaford to Fountain Valley (California) | 5,373.79 mi (8,648.28 km) |
| Sleaford to Fountainebleau (Florida) | 4,406.12 mi (7,090.96 km) |
| Sleaford to Four Corners (Oregon) | 4,867.48 mi (7,833.46 km) |
| Sleaford to Four Corners (Texas) | 4,813.45 mi (7,746.50 km) |
| Sleaford to Four Square Mile (Colorado) | 4,614.63 mi (7,426.53 km) |
| Sleaford to Fox Crossing (Wisconsin) | 3,809.89 mi (6,131.42 km) |
| Sleaford to Fox Lake (Illinois) | 3,884.37 mi (6,251.30 km) |
| Sleaford to Framingham (Massachusetts) | 3,245.82 mi (5,223.64 km) |
| Sleaford to Franconia (Virginia) | 3,632.95 mi (5,846.68 km) |
