| Domodossola to Oberkirch | 167.30 mi (269.24 km) |
| Domodossola to Obernburg am Main | 260.28 mi (418.88 km) |
| Domodossola to Obernkirchen | 426.57 mi (686.50 km) |
| Domodossola to Oberschleissheim | 213.03 mi (342.84 km) |
| Domodossola to Oberstdorf | 129.77 mi (208.85 km) |
| Domodossola to Obertraubling | 267.23 mi (430.06 km) |
| Domodossola to Obertshausen | 274.10 mi (441.13 km) |
| Domodossola to Oberursel | 282.70 mi (454.97 km) |
| Domodossola to Ochsenfurt | 257.64 mi (414.63 km) |
| Domodossola to Ochsenhausen | 156.01 mi (251.07 km) |
| Domodossola to Ochtrup | 423.66 mi (681.81 km) |
| Domodossola to Odenthal | 343.95 mi (553.53 km) |
| Domodossola to Oelde | 395.07 mi (635.81 km) |
| Domodossola to Oelsnitz | 346.39 mi (557.47 km) |
| Domodossola to Oer-Erkenschwick | 384.72 mi (619.15 km) |
