| Le Mars to Bonham (Texas) | 635.18 mi (1,022.22 km) |
| Le Mars to Bonita (California) | 1,331.48 mi (2,142.82 km) |
| Le Mars to Bonita Springs (Florida) | 1,394.87 mi (2,244.83 km) |
| Le Mars to Bonney Lake (Washington) | 1,299.82 mi (2,091.86 km) |
| Le Mars to Boone (Iowa) | 127.47 mi (205.14 km) |
| Le Mars to Boone (North Carolina) | 894.97 mi (1,440.32 km) |
| Le Mars to Borger (Texas) | 565.75 mi (910.49 km) |
| Le Mars to Bossier City (Louisiana) | 721.84 mi (1,161.69 km) |
| Le Mars to Boston (Massachusetts) | 1,272.67 mi (2,048.17 km) |
| Le Mars to Bostonia (California) | 1,321.25 mi (2,126.35 km) |
| Le Mars to Bothell (Washington) | 1,304.86 mi (2,099.97 km) |
| Le Mars to Bothell East (Washington) | 1,304.16 mi (2,098.85 km) |
| Le Mars to Bothell West (Washington) | 1,306.73 mi (2,102.98 km) |
| Le Mars to Boulder (Colorado) | 507.26 mi (816.36 km) |
| Le Mars to Boulder City (Nevada) | 1,107.97 mi (1,783.10 km) |
