| Ostrow Mazowiecka to Blue Springs (Missouri) | 5,036.23 mi (8,105.04 km) |
| Ostrow Mazowiecka to Bluffdale (Utah) | 5,427.39 mi (8,734.54 km) |
| Ostrow Mazowiecka to Bluffton (Indiana) | 4,652.25 mi (7,487.08 km) |
| Ostrow Mazowiecka to Bluffton (South Carolina) | 4,966.43 mi (7,992.70 km) |
| Ostrow Mazowiecka to Blythe (California) | 5,918.29 mi (9,524.57 km) |
| Ostrow Mazowiecka to Blytheville (Arkansas) | 5,071.89 mi (8,162.43 km) |
| Ostrow Mazowiecka to Boca Raton (Florida) | 5,254.18 mi (8,455.79 km) |
| Ostrow Mazowiecka to Boerne (Texas) | 5,708.96 mi (9,187.69 km) |
| Ostrow Mazowiecka to Bogalusa (Louisiana) | 5,360.39 mi (8,626.72 km) |
| Ostrow Mazowiecka to Boiling Springs (South Carolina) | 4,850.68 mi (7,806.42 km) |
| Ostrow Mazowiecka to Boise (Idaho) | 5,327.02 mi (8,573.01 km) |
| Ostrow Mazowiecka to Bolingbrook (Illinois) | 4,695.21 mi (7,556.21 km) |
| Ostrow Mazowiecka to Bolivar (Missouri) | 5,089.83 mi (8,191.29 km) |
| Ostrow Mazowiecka to Bon Air (Virginia) | 4,562.51 mi (7,342.66 km) |
| Ostrow Mazowiecka to Bonham (Texas) | 5,407.11 mi (8,701.90 km) |
