| Oskarshamn to Orbetello | 1,049.82 mi (1,689.52 km) |
| Oskarshamn to Oria | 1,159.55 mi (1,866.12 km) |
| Oskarshamn to Oristano | 1,250.06 mi (2,011.77 km) |
| Oskarshamn to Orta Nova | 1,101.43 mi (1,772.58 km) |
| Oskarshamn to Orte | 1,038.33 mi (1,671.03 km) |
| Oskarshamn to Ortona | 1,034.45 mi (1,664.79 km) |
| Oskarshamn to Orvieto | 1,022.88 mi (1,646.16 km) |
| Oskarshamn to Orzinuovi | 865.76 mi (1,393.30 km) |
| Oskarshamn to Osimo | 960.92 mi (1,546.46 km) |
| Oskarshamn to Ospitaletto | 853.55 mi (1,373.66 km) |
| Oskarshamn to Ostuni | 1,143.34 mi (1,840.03 km) |
| Oskarshamn to Ottaviano | 1,137.56 mi (1,830.72 km) |
| Oskarshamn to Ovada | 934.70 mi (1,504.26 km) |
| Oskarshamn to Ozieri | 1,199.33 mi (1,930.14 km) |
| Oskarshamn to Paceco | 1,344.02 mi (2,162.99 km) |
