| Duffel to Black Forest (Colorado) | 4,886.57 mi (7,864.17 km) |
| Duffel to Blackfoot (Idaho) | 4,904.55 mi (7,893.11 km) |
| Duffel to Blackhawk (California) | 5,491.40 mi (8,837.56 km) |
| Duffel to Blacksburg (Virginia) | 4,077.10 mi (6,561.46 km) |
| Duffel to Blackwells Mills (New Jersey) | 3,693.64 mi (5,944.34 km) |
| Duffel to Blaine (Minnesota) | 4,180.15 mi (6,727.30 km) |
| Duffel to Bloomingdale (Florida) | 4,610.48 mi (7,419.85 km) |
| Duffel to Bloomingdale (Illinois) | 4,150.16 mi (6,679.04 km) |
| Duffel to Bloomington (California) | 5,579.00 mi (8,978.54 km) |
| Duffel to Bloomington (Illinois) | 4,253.90 mi (6,845.99 km) |
| Duffel to Bloomington (Indiana) | 4,224.54 mi (6,798.74 km) |
| Duffel to Bloomington (Minnesota) | 4,200.30 mi (6,759.73 km) |
| Duffel to Bloomsburg (Pennsylvania) | 3,744.85 mi (6,026.75 km) |
| Duffel to Blue Ash (Ohio) | 4,137.74 mi (6,659.05 km) |
| Duffel to Blue Island (Illinois) | 4,148.84 mi (6,676.91 km) |
