| Irondale to Nasaud | 5,410.17 mi (8,706.83 km) |
| Irondale to Navodari | 5,696.35 mi (9,167.39 km) |
| Irondale to Negresti-Oas | 5,349.23 mi (8,608.75 km) |
| Irondale to Nehoiu | 5,563.80 mi (8,954.07 km) |
| Irondale to Ocna Mures | 5,427.03 mi (8,733.97 km) |
| Irondale to Odobesti | 5,574.34 mi (8,971.04 km) |
| Irondale to Odorheiu Secuiesc | 5,484.66 mi (8,826.71 km) |
| Irondale to Oltenita | 5,631.63 mi (9,063.23 km) |
| Irondale to Onesti | 5,541.79 mi (8,918.65 km) |
| Irondale to Oradea | 5,325.20 mi (8,570.08 km) |
| Irondale to Orastie | 5,424.28 mi (8,729.54 km) |
| Irondale to Oravita | 5,398.48 mi (8,688.02 km) |
| Irondale to Orsova | 5,439.41 mi (8,753.89 km) |
| Irondale to Otelu Rosu | 5,405.13 mi (8,698.71 km) |
| Irondale to Otopeni | 5,589.70 mi (8,995.76 km) |
