| Altenstadt to Oestrich-Winkel | 46.26 mi (74.45 km) |
| Altenstadt to Offenburg | 133.66 mi (215.10 km) |
| Altenstadt to Oftersheim | 65.23 mi (104.97 km) |
| Altenstadt to Ohrdruf | 86.97 mi (139.96 km) |
| Altenstadt to Ohringen | 78.99 mi (127.13 km) |
| Altenstadt to Olbernhau | 194.72 mi (313.37 km) |
| Altenstadt to Olching | 179.45 mi (288.80 km) |
| Altenstadt to Oldenburg | 199.95 mi (321.79 km) |
| Altenstadt to Oldenburg in Holstein | 289.18 mi (465.39 km) |
| Altenstadt to Olfen | 119.94 mi (193.03 km) |
| Altenstadt to Olpe | 70.17 mi (112.92 km) |
| Altenstadt to Olsberg | 76.25 mi (122.72 km) |
| Altenstadt to Oranienburg | 251.21 mi (404.28 km) |
| Altenstadt to Ortenberg | 6.87 mi (11.06 km) |
| Altenstadt to Oschatz | 194.80 mi (313.50 km) |
