| Clearfield to Orbetello | 5,667.00 mi (9,120.15 km) |
| Clearfield to Oria | 5,975.65 mi (9,616.88 km) |
| Clearfield to Oristano | 5,712.78 mi (9,193.84 km) |
| Clearfield to Orta Nova | 5,870.12 mi (9,447.04 km) |
| Clearfield to Orte | 5,703.67 mi (9,179.18 km) |
| Clearfield to Ortona | 5,773.22 mi (9,291.10 km) |
| Clearfield to Orvieto | 5,680.99 mi (9,142.67 km) |
| Clearfield to Orzinuovi | 5,469.47 mi (8,802.26 km) |
| Clearfield to Osimo | 5,682.95 mi (9,145.82 km) |
| Clearfield to Ospitaletto | 5,465.73 mi (8,796.25 km) |
| Clearfield to Ostuni | 5,961.01 mi (9,593.32 km) |
| Clearfield to Ottaviano | 5,857.85 mi (9,427.30 km) |
| Clearfield to Ovada | 5,467.97 mi (8,799.85 km) |
| Clearfield to Ozieri | 5,691.40 mi (9,159.43 km) |
| Clearfield to Paceco | 5,950.73 mi (9,576.78 km) |
