| Le Grand-Saconnex to Opole | 621.12 mi (999.60 km) |
| Le Grand-Saconnex to Orzesze | 640.66 mi (1,031.04 km) |
| Le Grand-Saconnex to Osowa | 783.60 mi (1,261.09 km) |
| Le Grand-Saconnex to Ostroda | 800.71 mi (1,288.62 km) |
| Le Grand-Saconnex to Ostroleka | 834.27 mi (1,342.63 km) |
| Le Grand-Saconnex to Ostrow Mazowiecka | 838.14 mi (1,348.85 km) |
| Le Grand-Saconnex to Ostrow Wielkopolski | 648.35 mi (1,043.42 km) |
| Le Grand-Saconnex to Ostrowiec Swietokrzyski | 768.43 mi (1,236.67 km) |
| Le Grand-Saconnex to Ostrzeszow | 644.70 mi (1,037.54 km) |
| Le Grand-Saconnex to Oswiecim | 657.82 mi (1,058.66 km) |
| Le Grand-Saconnex to Otwock | 793.67 mi (1,277.29 km) |
| Le Grand-Saconnex to Ozarow Mazowiecki | 778.80 mi (1,253.35 km) |
| Le Grand-Saconnex to Ozimek | 632.45 mi (1,017.82 km) |
| Le Grand-Saconnex to Ozorkow | 713.68 mi (1,148.55 km) |
| Le Grand-Saconnex to Pabianice | 707.32 mi (1,138.32 km) |
