| Trapani to Oegstgeest | 1,052.97 mi (1,694.60 km) |
| Trapani to Oirschot | 995.35 mi (1,601.85 km) |
| Trapani to Oisterwijk | 1,002.34 mi (1,613.11 km) |
| Trapani to Oldebroek | 1,046.76 mi (1,684.59 km) |
| Trapani to Oldenzaal | 1,023.94 mi (1,647.87 km) |
| Trapani to Ommen | 1,043.83 mi (1,679.89 km) |
| Trapani to Oosterend | 1,080.41 mi (1,738.75 km) |
| Trapani to Oosterhout | 1,012.11 mi (1,628.84 km) |
| Trapani to Oosterwolde | 1,076.51 mi (1,732.48 km) |
| Trapani to Oostzaan | 1,061.58 mi (1,708.45 km) |
| Trapani to Opmeer | 1,077.45 mi (1,733.99 km) |
| Trapani to Oss | 1,008.70 mi (1,623.35 km) |
| Trapani to Oud-Beijerland | 1,031.26 mi (1,659.65 km) |
| Trapani to Oudenbosch | 1,014.79 mi (1,633.15 km) |
| Trapani to Oudewater | 1,035.48 mi (1,666.45 km) |
