| Castel Volturno to Orthez | 768.51 mi (1,236.80 km) |
| Castel Volturno to Orvault | 879.80 mi (1,415.89 km) |
| Castel Volturno to Osny | 798.89 mi (1,285.69 km) |
| Castel Volturno to Ostwald | 600.44 mi (966.31 km) |
| Castel Volturno to Ouistreham | 891.97 mi (1,435.48 km) |
| Castel Volturno to Oullins | 558.98 mi (899.59 km) |
| Castel Volturno to Outreau | 890.00 mi (1,432.31 km) |
| Castel Volturno to Oyonnax | 547.14 mi (880.54 km) |
| Castel Volturno to Ozoir-la-Ferriere | 764.91 mi (1,231.00 km) |
| Castel Volturno to Pace | 911.90 mi (1,467.56 km) |
| Castel Volturno to Palaiseau | 777.44 mi (1,251.16 km) |
| Castel Volturno to Pamiers | 646.34 mi (1,040.18 km) |
| Castel Volturno to Panazol | 712.60 mi (1,146.82 km) |
| Castel Volturno to Pantin | 779.87 mi (1,255.09 km) |
| Castel Volturno to Paray-le-Monial | 614.35 mi (988.70 km) |
