| Opava to Bountiful (Utah) | 5,463.67 mi (8,792.93 km) |
| Opava to Bourbonnais (Illinois) | 4,708.59 mi (7,577.74 km) |
| Opava to Bowie (Maryland) | 4,411.93 mi (7,100.31 km) |
| Opava to Bowling Green (Kentucky) | 4,874.80 mi (7,845.23 km) |
| Opava to Bowling Green (Ohio) | 4,549.56 mi (7,321.81 km) |
| Opava to Box Elder (South Dakota) | 5,033.65 mi (8,100.87 km) |
| Opava to Boynton Beach (Florida) | 5,169.63 mi (8,319.72 km) |
| Opava to Bozeman (Montana) | 5,157.17 mi (8,299.67 km) |
| Opava to Bradenton (Florida) | 5,220.43 mi (8,401.47 km) |
| Opava to Bradfordville (Florida) | 5,123.60 mi (8,245.64 km) |
| Opava to Bradley (Illinois) | 4,708.41 mi (7,577.45 km) |
| Opava to Bradley Gardens (New Jersey) | 4,255.19 mi (6,848.07 km) |
| Opava to Brainerd (Minnesota) | 4,646.62 mi (7,478.01 km) |
| Opava to Brambleton (Virginia) | 4,441.02 mi (7,147.13 km) |
| Opava to Brandermill (Virginia) | 4,521.10 mi (7,276.01 km) |
