| Caltanissetta to Oegstgeest | 1,116.50 mi (1,796.83 km) |
| Caltanissetta to Oirschot | 1,058.14 mi (1,702.92 km) |
| Caltanissetta to Oisterwijk | 1,065.23 mi (1,714.32 km) |
| Caltanissetta to Oldebroek | 1,106.25 mi (1,780.34 km) |
| Caltanissetta to Oldenzaal | 1,080.90 mi (1,739.54 km) |
| Caltanissetta to Ommen | 1,101.87 mi (1,773.28 km) |
| Caltanissetta to Oosterend | 1,138.56 mi (1,832.33 km) |
| Caltanissetta to Oosterhout | 1,075.75 mi (1,731.25 km) |
| Caltanissetta to Oosterwolde | 1,134.11 mi (1,825.17 km) |
| Caltanissetta to Oostzaan | 1,123.64 mi (1,808.33 km) |
| Caltanissetta to Opmeer | 1,138.87 mi (1,832.83 km) |
| Caltanissetta to Oss | 1,070.43 mi (1,722.68 km) |
| Caltanissetta to Oud-Beijerland | 1,095.66 mi (1,763.29 km) |
| Caltanissetta to Oudenbosch | 1,079.35 mi (1,737.05 km) |
| Caltanissetta to Oudewater | 1,098.37 mi (1,767.65 km) |
