| Thornton to Buenaventura Lakes (Florida) | 4,246.89 mi (6,834.72 km) |
| Thornton to Buffalo (Minnesota) | 3,876.43 mi (6,238.52 km) |
| Thornton to Buffalo (New York) | 3,434.82 mi (5,527.82 km) |
| Thornton to Buffalo Grove (Illinois) | 3,810.94 mi (6,133.11 km) |
| Thornton to Buford (Georgia) | 4,056.05 mi (6,527.58 km) |
| Thornton to Bull Run (Virginia) | 3,574.32 mi (5,752.32 km) |
| Thornton to Bullhead City (Arizona) | 5,104.22 mi (8,214.45 km) |
| Thornton to Burbank (California) | 5,277.10 mi (8,492.67 km) |
| Thornton to Burbank (Illinois) | 3,824.20 mi (6,154.46 km) |
| Thornton to Burien (Washington) | 4,623.52 mi (7,440.84 km) |
| Thornton to Burkburnett (Texas) | 4,611.62 mi (7,421.69 km) |
| Thornton to Burke (Virginia) | 3,564.36 mi (5,736.28 km) |
| Thornton to Burke Centre (Virginia) | 3,565.18 mi (5,737.61 km) |
| Thornton to Burleson (Texas) | 4,649.07 mi (7,481.95 km) |
| Thornton to Burley (Idaho) | 4,663.11 mi (7,504.55 km) |
