| Altstatten to Oerlinghausen | 319.13 mi (513.59 km) |
| Altstatten to Oestrich-Winkel | 194.11 mi (312.40 km) |
| Altstatten to Offenburg | 105.86 mi (170.36 km) |
| Altstatten to Oftersheim | 144.28 mi (232.19 km) |
| Altstatten to Ohrdruf | 243.94 mi (392.59 km) |
| Altstatten to Ohringen | 125.54 mi (202.04 km) |
| Altstatten to Olbernhau | 284.25 mi (457.46 km) |
| Altstatten to Olching | 99.54 mi (160.20 km) |
| Altstatten to Oldenburg | 402.35 mi (647.52 km) |
| Altstatten to Oldenburg in Holstein | 481.40 mi (774.74 km) |
| Altstatten to Olfen | 314.73 mi (506.51 km) |
| Altstatten to Olpe | 262.72 mi (422.80 km) |
| Altstatten to Olsberg | 278.23 mi (447.78 km) |
| Altstatten to Oranienburg | 405.40 mi (652.42 km) |
| Altstatten to Ortenberg | 206.61 mi (332.50 km) |
