| Borehamwood to Portage (Michigan) | 3,844.53 mi (6,187.18 km) |
| Borehamwood to Portage (Wisconsin) | 3,928.56 mi (6,322.41 km) |
| Borehamwood to Portales (New Mexico) | 4,910.57 mi (7,902.80 km) |
| Borehamwood to Porterville (California) | 5,338.53 mi (8,591.53 km) |
| Borehamwood to Portland (Maine) | 3,175.82 mi (5,110.99 km) |
| Borehamwood to Portland (Oregon) | 4,899.28 mi (7,884.63 km) |
| Borehamwood to Portland (Tennessee) | 4,145.11 mi (6,670.91 km) |
| Borehamwood to Portland (Texas) | 5,013.89 mi (8,069.08 km) |
| Borehamwood to Portsmouth (New Hampshire) | 3,221.79 mi (5,184.96 km) |
| Borehamwood to Portsmouth (Ohio) | 3,900.30 mi (6,276.92 km) |
| Borehamwood to Portsmouth (Virginia) | 3,721.41 mi (5,989.04 km) |
| Borehamwood to Post Falls (Idaho) | 4,619.46 mi (7,434.30 km) |
| Borehamwood to Potomac (Maryland) | 3,657.03 mi (5,885.42 km) |
| Borehamwood to Potomac Park (California) | 5,376.58 mi (8,652.77 km) |
| Borehamwood to Pottstown (Pennsylvania) | 3,538.89 mi (5,695.29 km) |
