| Sarpsborg to Orbetello | 1,163.98 mi (1,873.25 km) |
| Sarpsborg to Oria | 1,328.52 mi (2,138.05 km) |
| Sarpsborg to Oristano | 1,343.54 mi (2,162.22 km) |
| Sarpsborg to Orta Nova | 1,256.33 mi (2,021.88 km) |
| Sarpsborg to Orte | 1,163.80 mi (1,872.96 km) |
| Sarpsborg to Ortona | 1,178.57 mi (1,896.72 km) |
| Sarpsborg to Orvieto | 1,145.49 mi (1,843.49 km) |
| Sarpsborg to Orzinuovi | 960.67 mi (1,546.04 km) |
| Sarpsborg to Osimo | 1,096.45 mi (1,764.57 km) |
| Sarpsborg to Ospitaletto | 949.67 mi (1,528.34 km) |
| Sarpsborg to Ostuni | 1,312.19 mi (2,111.77 km) |
| Sarpsborg to Ottaviano | 1,282.11 mi (2,063.35 km) |
| Sarpsborg to Ovada | 1,017.24 mi (1,637.08 km) |
| Sarpsborg to Ozieri | 1,295.35 mi (2,084.66 km) |
| Sarpsborg to Paceco | 1,473.24 mi (2,370.95 km) |
