| Slupsk to Orbetello | 871.91 mi (1,403.20 km) |
| Slupsk to Oria | 965.35 mi (1,553.57 km) |
| Slupsk to Oristano | 1,079.37 mi (1,737.08 km) |
| Slupsk to Orta Nova | 909.55 mi (1,463.78 km) |
| Slupsk to Orte | 855.87 mi (1,377.38 km) |
| Slupsk to Ortona | 845.61 mi (1,360.87 km) |
| Slupsk to Orvieto | 841.70 mi (1,354.59 km) |
| Slupsk to Orzinuovi | 700.56 mi (1,127.45 km) |
| Slupsk to Osimo | 775.41 mi (1,247.91 km) |
| Slupsk to Ospitaletto | 688.00 mi (1,107.23 km) |
| Slupsk to Ostuni | 949.17 mi (1,527.54 km) |
| Slupsk to Ottaviano | 948.06 mi (1,525.76 km) |
| Slupsk to Ovada | 774.75 mi (1,246.85 km) |
| Slupsk to Ozieri | 1,027.99 mi (1,654.40 km) |
| Slupsk to Paceco | 1,158.19 mi (1,863.93 km) |
