| Ostrow Mazowiecka to Black Forest (Colorado) | 5,331.40 mi (8,580.06 km) |
| Ostrow Mazowiecka to Blackfoot (Idaho) | 5,268.48 mi (8,478.80 km) |
| Ostrow Mazowiecka to Blackhawk (California) | 5,810.26 mi (9,350.71 km) |
| Ostrow Mazowiecka to Blacksburg (Virginia) | 4,679.00 mi (7,530.12 km) |
| Ostrow Mazowiecka to Blackwells Mills (New Jersey) | 4,303.71 mi (6,926.15 km) |
| Ostrow Mazowiecka to Blaine (Minnesota) | 4,658.03 mi (7,496.37 km) |
| Ostrow Mazowiecka to Bloomingdale (Florida) | 5,252.02 mi (8,452.30 km) |
| Ostrow Mazowiecka to Bloomingdale (Illinois) | 4,680.65 mi (7,532.78 km) |
| Ostrow Mazowiecka to Bloomington (California) | 5,955.48 mi (9,584.43 km) |
| Ostrow Mazowiecka to Bloomington (Illinois) | 4,789.31 mi (7,707.65 km) |
| Ostrow Mazowiecka to Bloomington (Indiana) | 4,782.25 mi (7,696.29 km) |
| Ostrow Mazowiecka to Bloomington (Minnesota) | 4,680.01 mi (7,531.75 km) |
| Ostrow Mazowiecka to Bloomsburg (Pennsylvania) | 4,342.65 mi (6,988.82 km) |
| Ostrow Mazowiecka to Blue Ash (Ohio) | 4,706.60 mi (7,574.54 km) |
| Ostrow Mazowiecka to Blue Island (Illinois) | 4,683.63 mi (7,537.57 km) |
