| Duffel to Bountiful (Utah) | 5,019.39 mi (8,077.93 km) |
| Duffel to Bourbonnais (Illinois) | 4,178.90 mi (6,725.30 km) |
| Duffel to Bowie (Maryland) | 3,848.56 mi (6,193.66 km) |
| Duffel to Bowling Green (Kentucky) | 4,327.50 mi (6,964.44 km) |
| Duffel to Bowling Green (Ohio) | 4,009.31 mi (6,452.37 km) |
| Duffel to Box Elder (South Dakota) | 4,565.99 mi (7,348.26 km) |
| Duffel to Boynton Beach (Florida) | 4,587.19 mi (7,382.38 km) |
| Duffel to Bozeman (Montana) | 4,728.84 mi (7,610.33 km) |
| Duffel to Bradenton (Florida) | 4,643.18 mi (7,472.47 km) |
| Duffel to Bradfordville (Florida) | 4,555.09 mi (7,330.72 km) |
| Duffel to Bradley (Illinois) | 4,178.56 mi (6,724.75 km) |
| Duffel to Bradley Gardens (New Jersey) | 3,692.32 mi (5,942.21 km) |
| Duffel to Brainerd (Minnesota) | 4,157.05 mi (6,690.12 km) |
| Duffel to Brambleton (Virginia) | 3,879.30 mi (6,243.13 km) |
| Duffel to Brandermill (Virginia) | 3,955.50 mi (6,365.76 km) |
