| Roy to Orbetello | 5,664.10 mi (9,115.49 km) |
| Roy to Oria | 5,972.58 mi (9,611.93 km) |
| Roy to Oristano | 5,710.11 mi (9,189.54 km) |
| Roy to Orta Nova | 5,867.09 mi (9,442.17 km) |
| Roy to Orte | 5,700.73 mi (9,174.44 km) |
| Roy to Ortona | 5,770.20 mi (9,286.24 km) |
| Roy to Orvieto | 5,678.05 mi (9,137.94 km) |
| Roy to Orzinuovi | 5,466.49 mi (8,797.47 km) |
| Roy to Osimo | 5,679.92 mi (9,140.94 km) |
| Roy to Ospitaletto | 5,462.74 mi (8,791.43 km) |
| Roy to Ostuni | 5,957.93 mi (9,588.36 km) |
| Roy to Ottaviano | 5,854.89 mi (9,422.54 km) |
| Roy to Ovada | 5,465.08 mi (8,795.19 km) |
| Roy to Ozieri | 5,688.68 mi (9,155.05 km) |
| Roy to Paceco | 5,947.98 mi (9,572.35 km) |
