| Mantes-la-Ville to Oria | 973.23 mi (1,566.25 km) |
| Mantes-la-Ville to Oristano | 711.93 mi (1,145.73 km) |
| Mantes-la-Ville to Orta Nova | 860.42 mi (1,384.72 km) |
| Mantes-la-Ville to Orte | 682.78 mi (1,098.83 km) |
| Mantes-la-Ville to Ortona | 763.15 mi (1,228.18 km) |
| Mantes-la-Ville to Orvieto | 660.27 mi (1,062.61 km) |
| Mantes-la-Ville to Orzinuovi | 457.92 mi (736.96 km) |
| Mantes-la-Ville to Osimo | 677.44 mi (1,090.24 km) |
| Mantes-la-Ville to Ospitaletto | 457.36 mi (736.05 km) |
| Mantes-la-Ville to Ostuni | 960.50 mi (1,545.77 km) |
| Mantes-la-Ville to Ottaviano | 837.80 mi (1,348.32 km) |
| Mantes-la-Ville to Ovada | 443.85 mi (714.30 km) |
| Mantes-la-Ville to Ozieri | 680.40 mi (1,095.00 km) |
| Mantes-la-Ville to Paceco | 931.81 mi (1,499.60 km) |
| Mantes-la-Ville to Pachino | 1,081.70 mi (1,740.83 km) |
