| Heinola to Oria | 1,473.62 mi (2,371.56 km) |
| Heinola to Oristano | 1,646.61 mi (2,649.96 km) |
| Heinola to Orta Nova | 1,439.47 mi (2,316.60 km) |
| Heinola to Orte | 1,413.23 mi (2,274.37 km) |
| Heinola to Ortona | 1,389.24 mi (2,235.76 km) |
| Heinola to Orvieto | 1,401.03 mi (2,254.74 km) |
| Heinola to Orzinuovi | 1,270.38 mi (2,044.47 km) |
| Heinola to Osimo | 1,328.46 mi (2,137.95 km) |
| Heinola to Ospitaletto | 1,257.78 mi (2,024.21 km) |
| Heinola to Ostuni | 1,458.32 mi (2,346.93 km) |
| Heinola to Ottaviano | 1,487.86 mi (2,394.48 km) |
| Heinola to Ovada | 1,344.78 mi (2,164.22 km) |
| Heinola to Ozieri | 1,595.02 mi (2,566.93 km) |
| Heinola to Paceco | 1,706.16 mi (2,745.80 km) |
| Heinola to Pachino | 1,757.39 mi (2,828.25 km) |
