| Sipoo to Oria | 1,411.65 mi (2,271.84 km) |
| Sipoo to Oristano | 1,585.18 mi (2,551.10 km) |
| Sipoo to Orta Nova | 1,377.10 mi (2,216.23 km) |
| Sipoo to Orte | 1,351.08 mi (2,174.35 km) |
| Sipoo to Ortona | 1,326.83 mi (2,135.32 km) |
| Sipoo to Orvieto | 1,338.97 mi (2,154.86 km) |
| Sipoo to Orzinuovi | 1,209.77 mi (1,946.93 km) |
| Sipoo to Osimo | 1,266.20 mi (2,037.75 km) |
| Sipoo to Ospitaletto | 1,197.15 mi (1,926.63 km) |
| Sipoo to Ostuni | 1,396.32 mi (2,247.17 km) |
| Sipoo to Ottaviano | 1,425.44 mi (2,294.02 km) |
| Sipoo to Ovada | 1,284.60 mi (2,067.36 km) |
| Sipoo to Ozieri | 1,533.57 mi (2,468.04 km) |
| Sipoo to Paceco | 1,643.76 mi (2,645.38 km) |
| Sipoo to Pachino | 1,695.12 mi (2,728.03 km) |
