| Prior Lake to Oerlinghausen | 4,315.22 mi (6,944.67 km) |
| Prior Lake to Oestrich-Winkel | 4,377.38 mi (7,044.71 km) |
| Prior Lake to Offenburg | 4,441.85 mi (7,148.47 km) |
| Prior Lake to Oftersheim | 4,425.09 mi (7,121.49 km) |
| Prior Lake to Ohrdruf | 4,433.96 mi (7,135.76 km) |
| Prior Lake to Ohringen | 4,464.36 mi (7,184.70 km) |
| Prior Lake to Olbernhau | 4,527.25 mi (7,285.90 km) |
| Prior Lake to Olching | 4,572.22 mi (7,358.28 km) |
| Prior Lake to Oldenburg | 4,250.12 mi (6,839.90 km) |
| Prior Lake to Oldenburg in Holstein | 4,286.44 mi (6,898.36 km) |
| Prior Lake to Olfen | 4,282.76 mi (6,892.43 km) |
| Prior Lake to Olpe | 4,327.85 mi (6,965.00 km) |
| Prior Lake to Olsberg | 4,335.58 mi (6,977.45 km) |
| Prior Lake to Oranienburg | 4,429.06 mi (7,127.88 km) |
| Prior Lake to Ortenberg | 4,398.15 mi (7,078.14 km) |
