| Ath to Navodari | 1,232.18 mi (1,983.00 km) |
| Ath to Negresti-Oas | 903.93 mi (1,454.73 km) |
| Ath to Nehoiu | 1,098.78 mi (1,768.32 km) |
| Ath to Ocna Mures | 961.61 mi (1,547.57 km) |
| Ath to Odobesti | 1,118.91 mi (1,800.71 km) |
| Ath to Odorheiu Secuiesc | 1,026.22 mi (1,651.54 km) |
| Ath to Oltenita | 1,155.75 mi (1,860.00 km) |
| Ath to Onesti | 1,091.55 mi (1,756.68 km) |
| Ath to Oradea | 858.55 mi (1,381.70 km) |
| Ath to Orastie | 949.69 mi (1,528.38 km) |
| Ath to Oravita | 913.05 mi (1,469.41 km) |
| Ath to Orsova | 954.09 mi (1,535.46 km) |
| Ath to Otelu Rosu | 924.46 mi (1,487.78 km) |
| Ath to Otopeni | 1,115.36 mi (1,795.00 km) |
| Ath to Ovidiu | 1,231.63 mi (1,982.11 km) |
