| Mattenhof to Nasaud | 731.47 mi (1,177.18 km) |
| Mattenhof to Navodari | 976.97 mi (1,572.28 km) |
| Mattenhof to Negresti-Oas | 682.27 mi (1,098.00 km) |
| Mattenhof to Nehoiu | 847.29 mi (1,363.58 km) |
| Mattenhof to Ocna Mures | 715.84 mi (1,152.03 km) |
| Mattenhof to Odobesti | 875.26 mi (1,408.60 km) |
| Mattenhof to Odorheiu Secuiesc | 784.22 mi (1,262.08 km) |
| Mattenhof to Oltenita | 891.13 mi (1,434.14 km) |
| Mattenhof to Onesti | 853.53 mi (1,373.63 km) |
| Mattenhof to Oradea | 617.45 mi (993.69 km) |
| Mattenhof to Orastie | 693.48 mi (1,116.05 km) |
| Mattenhof to Oravita | 639.87 mi (1,029.77 km) |
| Mattenhof to Orsova | 680.09 mi (1,094.50 km) |
| Mattenhof to Otelu Rosu | 660.29 mi (1,062.63 km) |
| Mattenhof to Otopeni | 853.60 mi (1,373.74 km) |
