| Canton to Orbetello | 4,520.54 mi (7,275.10 km) |
| Canton to Oria | 4,868.65 mi (7,835.34 km) |
| Canton to Oristano | 4,503.95 mi (7,248.40 km) |
| Canton to Orta Nova | 4,753.95 mi (7,650.75 km) |
| Canton to Orte | 4,569.31 mi (7,353.60 km) |
| Canton to Ortona | 4,658.00 mi (7,496.32 km) |
| Canton to Orvieto | 4,547.69 mi (7,318.80 km) |
| Canton to Orzinuovi | 4,356.12 mi (7,010.50 km) |
| Canton to Osimo | 4,575.14 mi (7,362.98 km) |
| Canton to Ospitaletto | 4,356.21 mi (7,010.64 km) |
| Canton to Ostuni | 4,856.77 mi (7,816.21 km) |
| Canton to Ottaviano | 4,721.61 mi (7,598.70 km) |
| Canton to Ovada | 4,330.32 mi (6,968.98 km) |
| Canton to Ozieri | 4,496.19 mi (7,235.92 km) |
| Canton to Paceco | 4,754.41 mi (7,651.48 km) |
