| Opava to Bingol | 1,343.16 mi (2,161.60 km) |
| Opava to Birecik | 1,337.12 mi (2,151.88 km) |
| Opava to Bitlis | 1,430.15 mi (2,301.60 km) |
| Opava to Bodrum | 1,009.14 mi (1,624.06 km) |
| Opava to Bogazliyan | 1,126.38 mi (1,812.74 km) |
| Opava to Bolu | 917.80 mi (1,477.05 km) |
| Opava to Bolvadin | 1,008.54 mi (1,623.09 km) |
| Opava to Bor | 1,170.33 mi (1,883.46 km) |
| Opava to Borcka | 1,284.38 mi (2,067.00 km) |
| Opava to Boyabat | 998.82 mi (1,607.44 km) |
| Opava to Bozdogan | 991.55 mi (1,595.75 km) |
| Opava to Bozkir | 1,132.40 mi (1,822.42 km) |
| Opava to Bozkurt | 1,017.99 mi (1,638.30 km) |
| Opava to Bozuyuk | 910.12 mi (1,464.70 km) |
| Opava to Bucak | 1,067.03 mi (1,717.22 km) |
