| Duffel to Bonita (California) | 5,648.51 mi (9,090.40 km) |
| Duffel to Bonita Springs (Florida) | 4,667.66 mi (7,511.87 km) |
| Duffel to Bonney Lake (Washington) | 4,946.36 mi (7,960.40 km) |
| Duffel to Boone (Iowa) | 4,356.31 mi (7,010.81 km) |
| Duffel to Boone (North Carolina) | 4,175.34 mi (6,719.56 km) |
| Duffel to Borger (Texas) | 4,954.95 mi (7,974.22 km) |
| Duffel to Bossier City (Louisiana) | 4,832.25 mi (7,776.75 km) |
| Duffel to Boston (Massachusetts) | 3,472.07 mi (5,587.76 km) |
| Duffel to Bostonia (California) | 5,637.01 mi (9,071.89 km) |
| Duffel to Bothell (Washington) | 4,912.43 mi (7,905.78 km) |
| Duffel to Bothell East (Washington) | 4,910.01 mi (7,901.89 km) |
| Duffel to Bothell West (Washington) | 4,911.43 mi (7,904.18 km) |
| Duffel to Boulder (Colorado) | 4,854.05 mi (7,811.85 km) |
| Duffel to Boulder City (Nevada) | 5,399.19 mi (8,689.16 km) |
| Duffel to Bound Brook (New Jersey) | 3,687.25 mi (5,934.06 km) |
