| New Silksworth to Orbetello | 1,030.46 mi (1,658.36 km) |
| New Silksworth to Oria | 1,321.50 mi (2,126.75 km) |
| New Silksworth to Oristano | 1,132.01 mi (1,821.79 km) |
| New Silksworth to Orta Nova | 1,217.37 mi (1,959.17 km) |
| New Silksworth to Orte | 1,059.33 mi (1,704.83 km) |
| New Silksworth to Ortona | 1,121.23 mi (1,804.45 km) |
| New Silksworth to Orvieto | 1,036.81 mi (1,668.59 km) |
| New Silksworth to Orzinuovi | 822.45 mi (1,323.60 km) |
| New Silksworth to Osimo | 1,030.44 mi (1,658.33 km) |
| New Silksworth to Ospitaletto | 817.26 mi (1,315.25 km) |
| New Silksworth to Ostuni | 1,306.81 mi (2,103.10 km) |
| New Silksworth to Ottaviano | 1,210.54 mi (1,948.17 km) |
| New Silksworth to Ovada | 835.25 mi (1,344.20 km) |
| New Silksworth to Ozieri | 1,096.32 mi (1,764.36 km) |
| New Silksworth to Paceco | 1,337.01 mi (2,151.71 km) |
