| Altdorf to Oberkirch | 117.96 mi (189.83 km) |
| Altdorf to Obernburg am Main | 206.75 mi (332.74 km) |
| Altdorf to Obernkirchen | 373.71 mi (601.43 km) |
| Altdorf to Oberschleissheim | 166.84 mi (268.50 km) |
| Altdorf to Oberstdorf | 85.97 mi (138.36 km) |
| Altdorf to Obertraubling | 218.61 mi (351.82 km) |
| Altdorf to Obertshausen | 221.29 mi (356.13 km) |
| Altdorf to Oberursel | 230.55 mi (371.04 km) |
| Altdorf to Ochsenfurt | 203.29 mi (327.16 km) |
| Altdorf to Ochsenhausen | 103.48 mi (166.53 km) |
| Altdorf to Ochtrup | 374.49 mi (602.69 km) |
| Altdorf to Odenthal | 295.98 mi (476.33 km) |
| Altdorf to Oelde | 343.85 mi (553.37 km) |
| Altdorf to Oelsnitz | 293.50 mi (472.34 km) |
| Altdorf to Oer-Erkenschwick | 335.78 mi (540.38 km) |
