| Portchester to Bonita (California) | 5,476.83 mi (8,814.11 km) |
| Portchester to Bonita Springs (Florida) | 4,432.37 mi (7,133.21 km) |
| Portchester to Bonney Lake (Washington) | 4,813.98 mi (7,747.35 km) |
| Portchester to Boone (Iowa) | 4,160.07 mi (6,694.99 km) |
| Portchester to Boone (North Carolina) | 3,951.89 mi (6,359.95 km) |
| Portchester to Borger (Texas) | 4,758.52 mi (7,658.10 km) |
| Portchester to Bossier City (Louisiana) | 4,618.53 mi (7,432.80 km) |
| Portchester to Boston (Massachusetts) | 3,247.34 mi (5,226.10 km) |
| Portchester to Bostonia (California) | 5,465.42 mi (8,795.74 km) |
| Portchester to Bothell (Washington) | 4,781.39 mi (7,694.90 km) |
| Portchester to Bothell East (Washington) | 4,779.00 mi (7,691.05 km) |
| Portchester to Bothell West (Washington) | 4,780.54 mi (7,693.53 km) |
| Portchester to Boulder (Colorado) | 4,672.66 mi (7,519.92 km) |
| Portchester to Boulder City (Nevada) | 5,228.69 mi (8,414.76 km) |
| Portchester to Bound Brook (New Jersey) | 3,462.99 mi (5,573.14 km) |
