| Portchester to Black Forest (Colorado) | 4,702.22 mi (7,567.50 km) |
| Portchester to Blackfoot (Idaho) | 4,743.21 mi (7,633.45 km) |
| Portchester to Blackhawk (California) | 5,339.93 mi (8,593.78 km) |
| Portchester to Blacksburg (Virginia) | 3,853.82 mi (6,202.12 km) |
| Portchester to Blackwells Mills (New Jersey) | 3,469.28 mi (5,583.27 km) |
| Portchester to Blaine (Minnesota) | 3,989.74 mi (6,420.87 km) |
| Portchester to Bloomingdale (Florida) | 4,377.12 mi (7,044.30 km) |
| Portchester to Bloomingdale (Illinois) | 3,945.24 mi (6,349.25 km) |
| Portchester to Bloomington (California) | 5,410.59 mi (8,707.50 km) |
| Portchester to Bloomington (Illinois) | 4,047.27 mi (6,513.45 km) |
| Portchester to Bloomington (Indiana) | 4,012.09 mi (6,456.84 km) |
| Portchester to Bloomington (Minnesota) | 4,009.28 mi (6,452.31 km) |
| Portchester to Bloomsburg (Pennsylvania) | 3,523.46 mi (5,670.46 km) |
| Portchester to Blue Ash (Ohio) | 3,922.65 mi (6,312.90 km) |
| Portchester to Blue Island (Illinois) | 3,942.76 mi (6,345.26 km) |
