| Portchester to Blue Springs (Missouri) | 4,321.09 mi (6,954.12 km) |
| Portchester to Bluffdale (Utah) | 4,876.12 mi (7,847.36 km) |
| Portchester to Bluffton (Indiana) | 3,886.14 mi (6,254.13 km) |
| Portchester to Bluffton (South Carolina) | 4,109.60 mi (6,613.77 km) |
| Portchester to Blythe (California) | 5,341.57 mi (8,596.43 km) |
| Portchester to Blytheville (Arkansas) | 4,299.91 mi (6,920.04 km) |
| Portchester to Boca Raton (Florida) | 4,359.34 mi (7,015.68 km) |
| Portchester to Boerne (Texas) | 4,959.76 mi (7,981.96 km) |
| Portchester to Bogalusa (Louisiana) | 4,551.55 mi (7,325.02 km) |
| Portchester to Boiling Springs (South Carolina) | 4,019.19 mi (6,468.26 km) |
| Portchester to Boise (Idaho) | 4,842.16 mi (7,792.70 km) |
| Portchester to Bolingbrook (Illinois) | 3,957.59 mi (6,369.12 km) |
| Portchester to Bolivar (Missouri) | 4,356.75 mi (7,011.50 km) |
| Portchester to Bon Air (Virginia) | 3,722.28 mi (5,990.44 km) |
| Portchester to Bonham (Texas) | 4,664.67 mi (7,507.05 km) |
