| Heinola to Navodari | 1,170.97 mi (1,884.50 km) |
| Heinola to Negresti-Oas | 926.79 mi (1,491.52 km) |
| Heinola to Nehoiu | 1,094.97 mi (1,762.18 km) |
| Heinola to Ocna Mures | 1,026.97 mi (1,652.74 km) |
| Heinola to Odobesti | 1,067.15 mi (1,717.41 km) |
| Heinola to Odorheiu Secuiesc | 1,028.95 mi (1,655.93 km) |
| Heinola to Oltenita | 1,182.67 mi (1,903.33 km) |
| Heinola to Onesti | 1,032.77 mi (1,662.09 km) |
| Heinola to Oradea | 989.74 mi (1,592.84 km) |
| Heinola to Orastie | 1,066.70 mi (1,716.69 km) |
| Heinola to Oravita | 1,130.38 mi (1,819.17 km) |
| Heinola to Orsova | 1,147.88 mi (1,847.33 km) |
| Heinola to Otelu Rosu | 1,093.63 mi (1,760.03 km) |
| Heinola to Otopeni | 1,150.40 mi (1,851.40 km) |
| Heinola to Ovidiu | 1,174.30 mi (1,889.85 km) |
