| Appenweier to Navodari | 1,021.30 mi (1,643.63 km) |
| Appenweier to Negresti-Oas | 711.48 mi (1,145.01 km) |
| Appenweier to Nehoiu | 889.57 mi (1,431.63 km) |
| Appenweier to Ocna Mures | 755.02 mi (1,215.08 km) |
| Appenweier to Odobesti | 914.48 mi (1,471.71 km) |
| Appenweier to Odorheiu Secuiesc | 822.28 mi (1,323.33 km) |
| Appenweier to Oltenita | 939.17 mi (1,511.44 km) |
| Appenweier to Onesti | 890.39 mi (1,432.95 km) |
| Appenweier to Oradea | 653.90 mi (1,052.35 km) |
| Appenweier to Orastie | 736.96 mi (1,186.02 km) |
| Appenweier to Oravita | 690.78 mi (1,111.70 km) |
| Appenweier to Orsova | 731.58 mi (1,177.36 km) |
| Appenweier to Otelu Rosu | 707.11 mi (1,137.98 km) |
| Appenweier to Otopeni | 900.26 mi (1,448.83 km) |
| Appenweier to Ovidiu | 1,020.33 mi (1,642.06 km) |
