| Chaumont-Gistoux to Oria | 938.79 mi (1,510.84 km) |
| Chaumont-Gistoux to Oristano | 768.12 mi (1,236.17 km) |
| Chaumont-Gistoux to Orta Nova | 833.11 mi (1,340.76 km) |
| Chaumont-Gistoux to Orte | 674.69 mi (1,085.81 km) |
| Chaumont-Gistoux to Ortona | 736.61 mi (1,185.47 km) |
| Chaumont-Gistoux to Orvieto | 652.24 mi (1,049.68 km) |
| Chaumont-Gistoux to Orzinuovi | 437.75 mi (704.50 km) |
| Chaumont-Gistoux to Osimo | 645.99 mi (1,039.62 km) |
| Chaumont-Gistoux to Ospitaletto | 432.31 mi (695.74 km) |
| Chaumont-Gistoux to Ostuni | 924.40 mi (1,487.67 km) |
| Chaumont-Gistoux to Ottaviano | 825.49 mi (1,328.49 km) |
| Chaumont-Gistoux to Ovada | 456.17 mi (734.14 km) |
| Chaumont-Gistoux to Ozieri | 727.83 mi (1,171.34 km) |
| Chaumont-Gistoux to Paceco | 958.26 mi (1,542.17 km) |
| Chaumont-Gistoux to Pachino | 1,093.65 mi (1,760.07 km) |
