| Castleton to Nyon | 621.58 mi (1,000.33 km) |
| Castleton to Oberriet | 672.81 mi (1,082.79 km) |
| Castleton to Obersiggenthal | 622.61 mi (1,001.99 km) |
| Castleton to Oberwil | 597.92 mi (962.27 km) |
| Castleton to Oberwingert | 636.61 mi (1,024.52 km) |
| Castleton to Oftringen | 619.35 mi (996.74 km) |
| Castleton to Olten | 617.11 mi (993.15 km) |
| Castleton to Onex | 629.66 mi (1,013.34 km) |
| Castleton to Opfikon | 634.15 mi (1,020.56 km) |
| Castleton to Ostermundigen | 625.26 mi (1,006.26 km) |
| Castleton to Payerne | 616.49 mi (992.14 km) |
| Castleton to Pfaffikon | 644.49 mi (1,037.21 km) |
| Castleton to Plan-les-Ouates | 631.06 mi (1,015.59 km) |
| Castleton to Pratteln | 602.30 mi (969.31 km) |
| Castleton to Prilly | 622.92 mi (1,002.49 km) |
