| Castel San Pietro Terme to Orthez | 617.22 mi (993.32 km) |
| Castel San Pietro Terme to Orvault | 664.99 mi (1,070.20 km) |
| Castel San Pietro Terme to Osny | 553.36 mi (890.54 km) |
| Castel San Pietro Terme to Ostwald | 340.73 mi (548.35 km) |
| Castel San Pietro Terme to Ouistreham | 652.26 mi (1,049.72 km) |
| Castel San Pietro Terme to Oullins | 342.80 mi (551.69 km) |
| Castel San Pietro Terme to Outreau | 636.71 mi (1,024.69 km) |
| Castel San Pietro Terme to Oyonnax | 315.10 mi (507.11 km) |
| Castel San Pietro Terme to Ozoir-la-Ferriere | 519.28 mi (835.70 km) |
| Castel San Pietro Terme to Pace | 687.32 mi (1,106.13 km) |
| Castel San Pietro Terme to Palaiseau | 533.89 mi (859.22 km) |
| Castel San Pietro Terme to Pamiers | 505.17 mi (812.99 km) |
| Castel San Pietro Terme to Panazol | 510.26 mi (821.18 km) |
| Castel San Pietro Terme to Pantin | 534.36 mi (859.96 km) |
| Castel San Pietro Terme to Paray-le-Monial | 388.50 mi (625.23 km) |
