| Sigulda to Orbetello | 1,179.96 mi (1,898.96 km) |
| Sigulda to Oria | 1,194.92 mi (1,923.04 km) |
| Sigulda to Oristano | 1,397.03 mi (2,248.31 km) |
| Sigulda to Orta Nova | 1,165.99 mi (1,876.47 km) |
| Sigulda to Orte | 1,153.39 mi (1,856.20 km) |
| Sigulda to Ortona | 1,121.31 mi (1,804.57 km) |
| Sigulda to Orvieto | 1,142.98 mi (1,839.44 km) |
| Sigulda to Orzinuovi | 1,032.48 mi (1,661.61 km) |
| Sigulda to Osimo | 1,066.29 mi (1,716.03 km) |
| Sigulda to Ospitaletto | 1,019.78 mi (1,641.18 km) |
| Sigulda to Ostuni | 1,179.85 mi (1,898.79 km) |
| Sigulda to Ottaviano | 1,217.51 mi (1,959.40 km) |
| Sigulda to Ovada | 1,110.80 mi (1,787.66 km) |
| Sigulda to Ozieri | 1,345.35 mi (2,165.13 km) |
| Sigulda to Paceco | 1,438.24 mi (2,314.63 km) |
