| Thornton to Brownsburg (Indiana) | 3,865.07 mi (6,220.23 km) |
| Thornton to Brownsville (Florida) | 4,333.05 mi (6,973.37 km) |
| Thornton to Brownsville (Texas) | 5,004.78 mi (8,054.41 km) |
| Thornton to Brownwood (Texas) | 4,752.93 mi (7,649.10 km) |
| Thornton to Brunswick (Georgia) | 4,107.23 mi (6,609.95 km) |
| Thornton to Brunswick (Ohio) | 3,624.60 mi (5,833.22 km) |
| Thornton to Brushy Creek (Texas) | 4,771.31 mi (7,678.68 km) |
| Thornton to Bryan (Texas) | 4,712.14 mi (7,583.45 km) |
| Thornton to Bryant (Arkansas) | 4,357.70 mi (7,013.04 km) |
| Thornton to Bryn Mawr-Skyway (Washington) | 4,619.90 mi (7,435.01 km) |
| Thornton to Buckeye (Arizona) | 5,138.09 mi (8,268.95 km) |
| Thornton to Buckhall (Virginia) | 3,574.13 mi (5,752.00 km) |
| Thornton to Bucyrus (Ohio) | 3,689.27 mi (5,937.31 km) |
| Thornton to Buda (Texas) | 4,798.93 mi (7,723.13 km) |
| Thornton to Buena Park (California) | 5,286.31 mi (8,507.50 km) |
