| Monteprandone to Oerlinghausen | 669.86 mi (1,078.03 km) |
| Monteprandone to Oestrich-Winkel | 562.27 mi (904.89 km) |
| Monteprandone to Offenburg | 477.32 mi (768.17 km) |
| Monteprandone to Oftersheim | 511.54 mi (823.24 km) |
| Monteprandone to Ohrdruf | 565.77 mi (910.51 km) |
| Monteprandone to Ohringen | 481.09 mi (774.23 km) |
| Monteprandone to Olbernhau | 535.99 mi (862.60 km) |
| Monteprandone to Olching | 384.75 mi (619.20 km) |
| Monteprandone to Oldenburg | 752.24 mi (1,210.62 km) |
| Monteprandone to Oldenburg in Holstein | 797.79 mi (1,283.92 km) |
| Monteprandone to Olfen | 678.31 mi (1,091.64 km) |
| Monteprandone to Olpe | 626.59 mi (1,008.40 km) |
| Monteprandone to Olsberg | 634.21 mi (1,020.66 km) |
| Monteprandone to Oranienburg | 680.28 mi (1,094.80 km) |
| Monteprandone to Ortenberg | 561.46 mi (903.58 km) |
