| Pleasant Prairie to Oerlinghausen | 4,233.92 mi (6,813.83 km) |
| Pleasant Prairie to Oestrich-Winkel | 4,285.06 mi (6,896.14 km) |
| Pleasant Prairie to Offenburg | 4,342.13 mi (6,987.98 km) |
| Pleasant Prairie to Oftersheim | 4,331.12 mi (6,970.27 km) |
| Pleasant Prairie to Ohrdruf | 4,351.81 mi (7,003.56 km) |
| Pleasant Prairie to Ohringen | 4,371.72 mi (7,035.61 km) |
| Pleasant Prairie to Olbernhau | 4,450.41 mi (7,162.24 km) |
| Pleasant Prairie to Olching | 4,479.33 mi (7,208.78 km) |
| Pleasant Prairie to Oldenburg | 4,173.68 mi (6,716.88 km) |
| Pleasant Prairie to Oldenburg in Holstein | 4,221.41 mi (6,793.71 km) |
| Pleasant Prairie to Olfen | 4,197.43 mi (6,755.11 km) |
| Pleasant Prairie to Olpe | 4,240.07 mi (6,823.74 km) |
| Pleasant Prairie to Olsberg | 4,250.87 mi (6,841.11 km) |
| Pleasant Prairie to Oranienburg | 4,361.71 mi (7,019.49 km) |
| Pleasant Prairie to Ortenberg | 4,309.93 mi (6,936.17 km) |
