| Claye-Souilly to Oria | 934.62 mi (1,504.12 km) |
| Claye-Souilly to Oristano | 688.65 mi (1,108.27 km) |
| Claye-Souilly to Orta Nova | 822.49 mi (1,323.66 km) |
| Claye-Souilly to Orte | 646.96 mi (1,041.19 km) |
| Claye-Souilly to Ortona | 725.05 mi (1,166.85 km) |
| Claye-Souilly to Orvieto | 624.36 mi (1,004.81 km) |
| Claye-Souilly to Orzinuovi | 419.04 mi (674.38 km) |
| Claye-Souilly to Osimo | 638.42 mi (1,027.44 km) |
| Claye-Souilly to Ospitaletto | 417.88 mi (672.51 km) |
| Claye-Souilly to Ostuni | 921.66 mi (1,483.27 km) |
| Claye-Souilly to Ottaviano | 801.91 mi (1,290.55 km) |
| Claye-Souilly to Ovada | 409.61 mi (659.21 km) |
| Claye-Souilly to Ozieri | 654.94 mi (1,054.03 km) |
| Claye-Souilly to Paceco | 902.90 mi (1,453.08 km) |
| Claye-Souilly to Pachino | 1,050.41 mi (1,690.48 km) |
