| Slough to Fortuna Foothills (Arizona) | 5,377.28 mi (8,653.89 km) |
| Slough to Foster City (California) | 5,348.56 mi (8,607.67 km) |
| Slough to Fostoria (Ohio) | 3,799.63 mi (6,114.92 km) |
| Slough to Fountain (Colorado) | 4,713.96 mi (7,586.39 km) |
| Slough to Fountain Hills (Arizona) | 5,233.73 mi (8,422.87 km) |
| Slough to Fountain Inn (South Carolina) | 4,052.60 mi (6,522.03 km) |
| Slough to Fountain Valley (California) | 5,435.71 mi (8,747.94 km) |
| Slough to Fountainebleau (Florida) | 4,414.91 mi (7,105.11 km) |
| Slough to Four Corners (Oregon) | 4,942.48 mi (7,954.15 km) |
| Slough to Four Corners (Texas) | 4,846.56 mi (7,799.78 km) |
| Slough to Four Square Mile (Colorado) | 4,669.09 mi (7,514.18 km) |
| Slough to Fox Crossing (Wisconsin) | 3,854.23 mi (6,202.78 km) |
| Slough to Fox Lake (Illinois) | 3,925.81 mi (6,317.98 km) |
| Slough to Framingham (Massachusetts) | 3,269.75 mi (5,262.16 km) |
| Slough to Franconia (Virginia) | 3,657.02 mi (5,885.41 km) |
