| Acton to Nasaud | 1,141.43 mi (1,836.95 km) |
| Acton to Navodari | 1,415.61 mi (2,278.20 km) |
| Acton to Negresti-Oas | 1,083.41 mi (1,743.58 km) |
| Acton to Nehoiu | 1,282.03 mi (2,063.22 km) |
| Acton to Ocna Mures | 1,144.56 mi (1,841.99 km) |
| Acton to Odobesti | 1,300.91 mi (2,093.61 km) |
| Acton to Odorheiu Secuiesc | 1,208.34 mi (1,944.63 km) |
| Acton to Oltenita | 1,340.48 mi (2,157.29 km) |
| Acton to Onesti | 1,272.73 mi (2,048.27 km) |
| Acton to Oradea | 1,041.37 mi (1,675.92 km) |
| Acton to Orastie | 1,133.97 mi (1,824.94 km) |
| Acton to Oravita | 1,098.74 mi (1,768.25 km) |
| Acton to Orsova | 1,139.78 mi (1,834.30 km) |
| Acton to Otelu Rosu | 1,109.56 mi (1,785.66 km) |
| Acton to Otopeni | 1,299.85 mi (2,091.91 km) |
