| Margate to Orbetello | 771.37 mi (1,241.40 km) |
| Margate to Oria | 1,079.50 mi (1,737.29 km) |
| Margate to Oristano | 865.17 mi (1,392.35 km) |
| Margate to Orta Nova | 971.04 mi (1,562.74 km) |
| Margate to Orte | 804.33 mi (1,294.44 km) |
| Margate to Ortona | 873.74 mi (1,406.15 km) |
| Margate to Orvieto | 781.66 mi (1,257.96 km) |
| Margate to Orzinuovi | 569.23 mi (916.09 km) |
| Margate to Osimo | 784.15 mi (1,261.97 km) |
| Margate to Ospitaletto | 565.57 mi (910.19 km) |
| Margate to Ostuni | 1,065.56 mi (1,714.86 km) |
| Margate to Ottaviano | 957.86 mi (1,541.53 km) |
| Margate to Ovada | 573.79 mi (923.42 km) |
| Margate to Ozieri | 829.99 mi (1,335.73 km) |
| Margate to Paceco | 1,073.51 mi (1,727.65 km) |
