| Castelfidardo to Orthez | 716.94 mi (1,153.80 km) |
| Castelfidardo to Orvault | 780.34 mi (1,255.84 km) |
| Castelfidardo to Osny | 669.93 mi (1,078.15 km) |
| Castelfidardo to Ostwald | 449.02 mi (722.64 km) |
| Castelfidardo to Ouistreham | 769.29 mi (1,238.06 km) |
| Castelfidardo to Oullins | 456.91 mi (735.33 km) |
| Castelfidardo to Outreau | 750.95 mi (1,208.53 km) |
| Castelfidardo to Oyonnax | 431.64 mi (694.66 km) |
| Castelfidardo to Ozoir-la-Ferriere | 635.89 mi (1,023.37 km) |
| Castelfidardo to Pace | 803.89 mi (1,293.74 km) |
| Castelfidardo to Palaiseau | 650.73 mi (1,047.25 km) |
| Castelfidardo to Pamiers | 600.22 mi (965.96 km) |
| Castelfidardo to Panazol | 622.71 mi (1,002.15 km) |
| Castelfidardo to Pantin | 650.96 mi (1,047.62 km) |
| Castelfidardo to Paray-le-Monial | 504.56 mi (812.01 km) |
