| Duffel to Bingol | 1,924.99 mi (3,097.97 km) |
| Duffel to Birecik | 1,901.11 mi (3,059.54 km) |
| Duffel to Bitlis | 2,013.98 mi (3,241.20 km) |
| Duffel to Bodrum | 1,484.61 mi (2,389.26 km) |
| Duffel to Bogazliyan | 1,690.99 mi (2,721.39 km) |
| Duffel to Bolu | 1,474.04 mi (2,372.24 km) |
| Duffel to Bolvadin | 1,541.62 mi (2,481.00 km) |
| Duffel to Bor | 1,721.83 mi (2,771.02 km) |
| Duffel to Borcka | 1,875.27 mi (3,017.95 km) |
| Duffel to Boyabat | 1,575.94 mi (2,536.23 km) |
| Duffel to Bozdogan | 1,485.48 mi (2,390.66 km) |
| Duffel to Bozkir | 1,661.43 mi (2,673.81 km) |
| Duffel to Bozkurt | 1,528.31 mi (2,459.57 km) |
| Duffel to Bozuyuk | 1,446.49 mi (2,327.89 km) |
| Duffel to Bucak | 1,583.66 mi (2,548.66 km) |
