| Echelon to Nasaud | 4,650.91 mi (7,484.91 km) |
| Echelon to Navodari | 4,935.42 mi (7,942.80 km) |
| Echelon to Negresti-Oas | 4,590.24 mi (7,387.28 km) |
| Echelon to Nehoiu | 4,802.26 mi (7,728.49 km) |
| Echelon to Ocna Mures | 4,664.94 mi (7,507.49 km) |
| Echelon to Odobesti | 4,814.75 mi (7,748.60 km) |
| Echelon to Odorheiu Secuiesc | 4,724.13 mi (7,602.75 km) |
| Echelon to Oltenita | 4,867.70 mi (7,833.81 km) |
| Echelon to Onesti | 4,783.01 mi (7,697.51 km) |
| Echelon to Oradea | 4,562.49 mi (7,342.62 km) |
| Echelon to Orastie | 4,660.21 mi (7,499.88 km) |
| Echelon to Oravita | 4,631.16 mi (7,453.14 km) |
| Echelon to Orsova | 4,672.17 mi (7,519.14 km) |
| Echelon to Otelu Rosu | 4,639.44 mi (7,466.46 km) |
| Echelon to Otopeni | 4,826.09 mi (7,766.84 km) |
