| Langenfeld to Portage (Michigan) | 4,135.21 mi (6,654.97 km) |
| Langenfeld to Portage (Wisconsin) | 4,211.68 mi (6,778.05 km) |
| Langenfeld to Portales (New Mexico) | 5,189.32 mi (8,351.41 km) |
| Langenfeld to Porterville (California) | 5,581.83 mi (8,983.09 km) |
| Langenfeld to Portland (Maine) | 3,479.36 mi (5,599.49 km) |
| Langenfeld to Portland (Oregon) | 5,114.32 mi (8,230.71 km) |
| Langenfeld to Portland (Tennessee) | 4,443.44 mi (7,151.02 km) |
| Langenfeld to Portland (Texas) | 5,310.43 mi (8,546.31 km) |
| Langenfeld to Portsmouth (New Hampshire) | 3,525.82 mi (5,674.26 km) |
| Langenfeld to Portsmouth (Ohio) | 4,199.43 mi (6,758.34 km) |
| Langenfeld to Portsmouth (Virginia) | 4,028.57 mi (6,483.36 km) |
| Langenfeld to Post Falls (Idaho) | 4,843.03 mi (7,794.10 km) |
| Langenfeld to Potomac (Maryland) | 3,961.17 mi (6,374.88 km) |
| Langenfeld to Potomac Park (California) | 5,621.36 mi (9,046.71 km) |
| Langenfeld to Pottstown (Pennsylvania) | 3,842.77 mi (6,184.34 km) |
