| Le Grand-Saconnex to Nuth | 323.77 mi (521.05 km) |
| Le Grand-Saconnex to Oegstgeest | 417.77 mi (672.33 km) |
| Le Grand-Saconnex to Oirschot | 365.78 mi (588.66 km) |
| Le Grand-Saconnex to Oisterwijk | 371.98 mi (598.64 km) |
| Le Grand-Saconnex to Oldebroek | 429.64 mi (691.44 km) |
| Le Grand-Saconnex to Oldenzaal | 421.92 mi (679.02 km) |
| Le Grand-Saconnex to Ommen | 434.35 mi (699.02 km) |
| Le Grand-Saconnex to Oosterend | 467.79 mi (752.83 km) |
| Le Grand-Saconnex to Oosterhout | 378.11 mi (608.51 km) |
| Le Grand-Saconnex to Oosterwolde | 466.93 mi (751.45 km) |
| Le Grand-Saconnex to Oostzaan | 431.95 mi (695.15 km) |
| Le Grand-Saconnex to Opmeer | 449.85 mi (723.96 km) |
| Le Grand-Saconnex to Oss | 383.28 mi (616.83 km) |
| Le Grand-Saconnex to Oud-Beijerland | 393.51 mi (633.29 km) |
| Le Grand-Saconnex to Oudenbosch | 377.03 mi (606.78 km) |
