| Sankt Leon-Rot to Oerlinghausen | 186.67 mi (300.42 km) |
| Sankt Leon-Rot to Oestrich-Winkel | 57.40 mi (92.37 km) |
| Sankt Leon-Rot to Offenburg | 62.92 mi (101.26 km) |
| Sankt Leon-Rot to Oftersheim | 7.30 mi (11.75 km) |
| Sankt Leon-Rot to Ohrdruf | 143.61 mi (231.11 km) |
| Sankt Leon-Rot to Ohringen | 40.92 mi (65.85 km) |
| Sankt Leon-Rot to Olbernhau | 231.58 mi (372.69 km) |
| Sankt Leon-Rot to Olching | 144.07 mi (231.87 km) |
| Sankt Leon-Rot to Oldenburg | 268.50 mi (432.11 km) |
| Sankt Leon-Rot to Oldenburg in Holstein | 361.26 mi (581.39 km) |
| Sankt Leon-Rot to Olfen | 177.59 mi (285.81 km) |
| Sankt Leon-Rot to Olpe | 125.66 mi (202.24 km) |
| Sankt Leon-Rot to Olsberg | 144.13 mi (231.95 km) |
| Sankt Leon-Rot to Oranienburg | 314.15 mi (505.58 km) |
| Sankt Leon-Rot to Ortenberg | 78.05 mi (125.61 km) |
