| Thame to Orbetello | 859.25 mi (1,382.83 km) |
| Thame to Oria | 1,176.17 mi (1,892.86 km) |
| Thame to Oristano | 937.13 mi (1,508.16 km) |
| Thame to Orta Nova | 1,066.25 mi (1,715.97 km) |
| Thame to Orte | 895.37 mi (1,440.95 km) |
| Thame to Ortona | 968.74 mi (1,559.04 km) |
| Thame to Orvieto | 872.69 mi (1,404.46 km) |
| Thame to Orzinuovi | 662.78 mi (1,066.65 km) |
| Thame to Osimo | 880.03 mi (1,416.27 km) |
| Thame to Ospitaletto | 660.02 mi (1,062.20 km) |
| Thame to Ostuni | 1,162.53 mi (1,870.92 km) |
| Thame to Ottaviano | 1,049.84 mi (1,689.56 km) |
| Thame to Ovada | 660.38 mi (1,062.78 km) |
| Thame to Ozieri | 905.25 mi (1,456.87 km) |
| Thame to Paceco | 1,154.85 mi (1,858.55 km) |
