| Tranas to Orbetello | 1,089.71 mi (1,753.72 km) |
| Tranas to Oria | 1,217.15 mi (1,958.81 km) |
| Tranas to Oristano | 1,284.06 mi (2,066.49 km) |
| Tranas to Orta Nova | 1,154.49 mi (1,857.98 km) |
| Tranas to Orte | 1,081.82 mi (1,741.01 km) |
| Tranas to Ortona | 1,083.89 mi (1,744.35 km) |
| Tranas to Orvieto | 1,065.38 mi (1,714.57 km) |
| Tranas to Orzinuovi | 898.46 mi (1,445.92 km) |
| Tranas to Osimo | 1,007.33 mi (1,621.15 km) |
| Tranas to Ospitaletto | 886.56 mi (1,426.79 km) |
| Tranas to Ostuni | 1,200.87 mi (1,932.61 km) |
| Tranas to Ottaviano | 1,187.45 mi (1,911.01 km) |
| Tranas to Ovada | 963.79 mi (1,551.07 km) |
| Tranas to Ozieri | 1,233.97 mi (1,985.88 km) |
| Tranas to Paceco | 1,389.60 mi (2,236.35 km) |
