| March to Orbetello | 868.41 mi (1,397.57 km) |
| March to Oria | 1,172.59 mi (1,887.10 km) |
| March to Oristano | 962.04 mi (1,548.26 km) |
| March to Orta Nova | 1,065.21 mi (1,714.29 km) |
| March to Orte | 900.54 mi (1,449.28 km) |
| March to Ortona | 968.13 mi (1,558.05 km) |
| March to Orvieto | 877.89 mi (1,412.82 km) |
| March to Orzinuovi | 664.77 mi (1,069.84 km) |
| March to Osimo | 878.10 mi (1,413.17 km) |
| March to Ospitaletto | 660.68 mi (1,063.27 km) |
| March to Ostuni | 1,158.43 mi (1,864.31 km) |
| March to Ottaviano | 1,053.63 mi (1,695.65 km) |
| March to Ovada | 671.15 mi (1,080.11 km) |
| March to Ozieri | 927.29 mi (1,492.33 km) |
| March to Paceco | 1,171.13 mi (1,884.76 km) |
