| Arlon to Navodari | 1,131.01 mi (1,820.18 km) |
| Arlon to Negresti-Oas | 809.52 mi (1,302.79 km) |
| Arlon to Nehoiu | 998.11 mi (1,606.30 km) |
| Arlon to Ocna Mures | 861.73 mi (1,386.81 km) |
| Arlon to Odobesti | 1,020.20 mi (1,641.86 km) |
| Arlon to Odorheiu Secuiesc | 927.54 mi (1,492.72 km) |
| Arlon to Oltenita | 1,052.18 mi (1,693.32 km) |
| Arlon to Onesti | 994.13 mi (1,599.90 km) |
| Arlon to Oradea | 759.16 mi (1,221.74 km) |
| Arlon to Orastie | 847.35 mi (1,363.68 km) |
| Arlon to Oravita | 806.97 mi (1,298.69 km) |
| Arlon to Orsova | 847.97 mi (1,364.67 km) |
| Arlon to Otelu Rosu | 820.28 mi (1,320.12 km) |
| Arlon to Otopeni | 1,012.34 mi (1,629.20 km) |
| Arlon to Ovidiu | 1,130.28 mi (1,819.01 km) |
