| Blackburn to Fortuna Foothills (Arizona) | 5,220.56 mi (8,401.67 km) |
| Blackburn to Foster City (California) | 5,182.59 mi (8,340.58 km) |
| Blackburn to Fostoria (Ohio) | 3,666.28 mi (5,900.30 km) |
| Blackburn to Fountain (Colorado) | 4,561.02 mi (7,340.26 km) |
| Blackburn to Fountain Hills (Arizona) | 5,078.76 mi (8,173.47 km) |
| Blackburn to Fountain Inn (South Carolina) | 3,932.64 mi (6,328.97 km) |
| Blackburn to Fountain Valley (California) | 5,275.12 mi (8,489.48 km) |
| Blackburn to Fountainebleau (Florida) | 4,314.61 mi (6,943.69 km) |
| Blackburn to Four Corners (Oregon) | 4,772.85 mi (7,681.16 km) |
| Blackburn to Four Corners (Texas) | 4,714.98 mi (7,588.02 km) |
| Blackburn to Four Square Mile (Colorado) | 4,514.97 mi (7,266.15 km) |
| Blackburn to Fox Crossing (Wisconsin) | 3,710.16 mi (5,970.93 km) |
| Blackburn to Fox Lake (Illinois) | 3,784.86 mi (6,091.14 km) |
| Blackburn to Framingham (Massachusetts) | 3,149.55 mi (5,068.71 km) |
| Blackburn to Franconia (Virginia) | 3,536.58 mi (5,691.57 km) |
