| Cities | Distance |
|---|---|
| Mainz to Oria | 796.76 mi (1,282.26 km) |
| Mainz to Oristano | 696.47 mi (1,120.86 km) |
| Mainz to Orta Nova | 696.81 mi (1,121.41 km) |
| Mainz to Orte | 555.62 mi (894.18 km) |
| Mainz to Ortona | 603.08 mi (970.57 km) |
| Mainz to Orvieto | 534.20 mi (859.71 km) |
| Mainz to Orzinuovi | 326.00 mi (524.65 km) |
| Mainz to Osimo | 512.26 mi (824.41 km) |
| Mainz to Ospitaletto | 317.21 mi (510.51 km) |
| Mainz to Ostuni | 781.68 mi (1,257.98 km) |
| Mainz to Ottaviano | 698.66 mi (1,124.39 km) |
| Mainz to Ovada | 369.67 mi (594.92 km) |
| Mainz to Ozieri | 650.34 mi (1,046.63 km) |
| Mainz to Paceco | 855.65 mi (1,377.04 km) |
| Mainz to Pachino | 977.79 mi (1,573.61 km) |