| Trakai to Orbetello | 1,046.71 mi (1,684.51 km) |
| Trakai to Oria | 1,032.77 mi (1,662.08 km) |
| Trakai to Oristano | 1,267.14 mi (2,039.27 km) |
| Trakai to Orta Nova | 1,011.24 mi (1,627.43 km) |
| Trakai to Orte | 1,014.90 mi (1,633.32 km) |
| Trakai to Ortona | 973.77 mi (1,567.13 km) |
| Trakai to Orvieto | 1,006.56 mi (1,619.90 km) |
| Trakai to Orzinuovi | 918.66 mi (1,478.44 km) |
| Trakai to Osimo | 926.02 mi (1,490.28 km) |
| Trakai to Ospitaletto | 906.11 mi (1,458.24 km) |
| Trakai to Ostuni | 1,018.09 mi (1,638.46 km) |
| Trakai to Ottaviano | 1,066.44 mi (1,716.28 km) |
| Trakai to Ovada | 999.47 mi (1,608.50 km) |
| Trakai to Ozieri | 1,215.78 mi (1,956.61 km) |
| Trakai to Paceco | 1,288.97 mi (2,074.40 km) |
