| Thornton to Firestone (Colorado) | 4,511.23 mi (7,260.12 km) |
| Thornton to Fish Hawk (Florida) | 4,306.69 mi (6,930.95 km) |
| Thornton to Fishers (Indiana) | 3,843.27 mi (6,185.15 km) |
| Thornton to Fitchburg (Massachusetts) | 3,176.16 mi (5,111.53 km) |
| Thornton to Fitchburg (Wisconsin) | 3,825.03 mi (6,155.79 km) |
| Thornton to Five Corners (Washington) | 4,732.84 mi (7,616.78 km) |
| Thornton to Five Forks (South Carolina) | 3,952.42 mi (6,360.80 km) |
| Thornton to Flagstaff (Arizona) | 5,005.34 mi (8,055.31 km) |
| Thornton to Flat Rock (Michigan) | 3,639.60 mi (5,857.37 km) |
| Thornton to Fleming Island (Florida) | 4,170.26 mi (6,711.39 km) |
| Thornton to Flint (Michigan) | 3,612.19 mi (5,813.26 km) |
| Thornton to Floral Park (New York) | 3,333.98 mi (5,365.52 km) |
| Thornton to Florence (Alabama) | 4,162.85 mi (6,699.47 km) |
| Thornton to Florence (Arizona) | 5,118.43 mi (8,237.32 km) |
| Thornton to Florence (Kentucky) | 3,840.30 mi (6,180.37 km) |
