| Opava to Berga | 938.63 mi (1,510.58 km) |
| Opava to Berja | 1,375.14 mi (2,213.08 km) |
| Opava to Bermeo | 1,072.04 mi (1,725.28 km) |
| Opava to Berriozar | 1,049.75 mi (1,689.41 km) |
| Opava to Betanzos | 1,313.98 mi (2,114.64 km) |
| Opava to Betera | 1,144.82 mi (1,842.41 km) |
| Opava to Bilbao | 1,086.43 mi (1,748.44 km) |
| Opava to Binefar | 1,010.47 mi (1,626.20 km) |
| Opava to Binisalem | 1,020.02 mi (1,641.57 km) |
| Opava to Blanes | 922.18 mi (1,484.10 km) |
| Opava to Boadilla del Monte | 1,241.68 mi (1,998.28 km) |
| Opava to Boiro | 1,365.99 mi (2,198.35 km) |
| Opava to Bolanos de Calatrava | 1,304.55 mi (2,099.46 km) |
| Opava to Bollullos de la Mitacion | 1,473.57 mi (2,371.49 km) |
| Opava to Bollullos par del Condado | 1,489.46 mi (2,397.05 km) |
