| Tienen to Navodari | 1,184.88 mi (1,906.87 km) |
| Tienen to Negresti-Oas | 854.33 mi (1,374.91 km) |
| Tienen to Nehoiu | 1,051.33 mi (1,691.95 km) |
| Tienen to Ocna Mures | 913.92 mi (1,470.81 km) |
| Tienen to Odobesti | 1,070.59 mi (1,722.96 km) |
| Tienen to Odorheiu Secuiesc | 977.97 mi (1,573.88 km) |
| Tienen to Oltenita | 1,109.80 mi (1,786.05 km) |
| Tienen to Onesti | 1,042.77 mi (1,678.18 km) |
| Tienen to Oradea | 810.75 mi (1,304.77 km) |
| Tienen to Orastie | 903.20 mi (1,453.56 km) |
| Tienen to Oravita | 869.09 mi (1,398.67 km) |
| Tienen to Orsova | 910.12 mi (1,464.70 km) |
| Tienen to Otelu Rosu | 879.10 mi (1,414.77 km) |
| Tienen to Otopeni | 1,069.11 mi (1,720.57 km) |
| Tienen to Ovidiu | 1,184.41 mi (1,906.12 km) |
