| Ostrow Wielkopolski to Bonita (California) | 6,000.89 mi (9,657.50 km) |
| Ostrow Wielkopolski to Bonita Springs (Florida) | 5,195.95 mi (8,362.08 km) |
| Ostrow Wielkopolski to Bonney Lake (Washington) | 5,209.06 mi (8,383.17 km) |
| Ostrow Wielkopolski to Boone (Iowa) | 4,781.74 mi (7,695.47 km) |
| Ostrow Wielkopolski to Boone (North Carolina) | 4,671.82 mi (7,518.57 km) |
| Ostrow Wielkopolski to Borger (Texas) | 5,376.36 mi (8,652.41 km) |
| Ostrow Wielkopolski to Bossier City (Louisiana) | 5,299.56 mi (8,528.82 km) |
| Ostrow Wielkopolski to Boston (Massachusetts) | 3,975.30 mi (6,397.63 km) |
| Ostrow Wielkopolski to Bostonia (California) | 5,989.26 mi (9,638.79 km) |
| Ostrow Wielkopolski to Bothell (Washington) | 5,172.31 mi (8,324.03 km) |
| Ostrow Wielkopolski to Bothell East (Washington) | 5,169.86 mi (8,320.08 km) |
| Ostrow Wielkopolski to Bothell West (Washington) | 5,170.98 mi (8,321.88 km) |
| Ostrow Wielkopolski to Boulder (Colorado) | 5,238.13 mi (8,429.96 km) |
| Ostrow Wielkopolski to Boulder City (Nevada) | 5,750.90 mi (9,255.18 km) |
| Ostrow Wielkopolski to Bound Brook (New Jersey) | 4,188.19 mi (6,740.24 km) |
